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More Los Angeles Fire Images
Triple-digit temperatures, e …
9/1/09
Description Triple-digit temperatures, extremely low relative humidities, dense vegetation that has not burned in decades, and years of extended drought are all contributing to the explosive growth of wildfires throughout Southern California. The Station fire, which began Aug. 26, 2009, in La Canada/Flintridge, not far from NASA's Jet Propulsion Laboratory, had reportedly burned 105,000 acres (164 square miles) of the Angeles National Forest by mid-day Aug. 31, destroying at least 21 homes and threatening more than 12,000 others. It is one of four major fires burning in Southern California at the present time. This image was acquired mid-morning on Aug. 30 by the backward (northward)-viewing camera of the Multi-angle Imaging SpectroRadiometer (MISR) instrument on NASA's Terra satellite. The image is shown in an approximate perspective view at an angle of 46 degrees off of vertical. The area covered by the image is 245 kilometers (152 miles) wide. Several pyrocumulus clouds, created by the Station Fire, are visible above the smoke plumes rising from the San Gabriel Mountains north of Los Angeles in the left-center of the image. Smoke from the Station fire is seen covering the interior valleys along the south side of the San Gabriel Mountains, along with parts of the City of Los Angeles and Orange County, and can be seen drifting for hundreds of kilometers to the east over the Mojave Desert. The accompanying plots are histograms that display the heights of the smoke plumes and wind speeds. In this data set, the plume is injecting smoke more than 7 kilometers (4.3 miles) above sea level. MISR observes the daylit Earth continuously and every 9 days views the entire globe between 82 degrees north and 82 degrees south latitude. This image was generated from a portion of the imagery acquired during Terra orbit 51601. MISR was built and is managed by NASA's Jet Propulsion Laboratory, Pasadena, Calif., for NASA's Science Mission Directorate, Washington, DC. The Terra satellite is managed by NASA's Goddard Space Flight Center, Greenbelt, Md. The MISR data were obtained from the NASA Langley Research Center Atmospheric Science Data Center. JPL is a division of the California Institute of Technology. Image Credit: NASA/GSFC/LaRC/JPL, MISR Team
Date 9/1/09
Extent of Station Fire Burn
On September 6, 2009, the Ad …
9/9/09
Description On September 6, 2009, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra satellite captured this simulated natural color image of the Station fire, burning in the San Gabriel Mountains north of Los Angeles. The fire started on August 26 in La Canada/Flintridge near NASA's Jet Propulsion Laboratory in Pasadena (seen at the bottom of the image), and soon grew to become the largest fire in Los Angeles County's history. Ten days after its start, the fire had consumed more than 160,000 acres (251 square miles) of forest, leaving behind a charred, blackened landscape, as it spread eastward. Smoke from the actively burning area can be seen on the right side of the image, the large dark gray area dominating the image is the evidence of forest and chaparral destruction. With its 14 spectral bands from the visible to the thermal infrared wavelength region and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER images Earth to map and monitor the changing surface of our planet. ASTER is one of five Earth-observing instruments launched December 18, 1999, on NASA's Terra satellite. The instrument was built by Japan's Ministry of Economy, Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and the data products. The broad spectral coverage and high spectral resolution of ASTER provides scientists in numerous disciplines with critical information for surface mapping and monitoring of dynamic conditions and temporal change. Example applications are: monitoring glacial advances and retreats, monitoring potentially active volcanoes, identifying crop stress, determining cloud morphology and physical properties, wetlands evaluation, thermal pollution monitoring, coral reef degradation, surface temperature mapping of soils and geology, and measuring surface heat balance. The U.S. science team is located at NASA's Jet Propulsion Laboratory, Pasadena, Calif. The Terra mission is part of NASA's Science Mission Directorate, Washington, D.C. Image credit: NASA/Goddard Space Flight Center/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team Text credit: NASA's Jet Propulsion Laboratory
Date 9/9/09
NASA TV's This Week @NASA, M …
** STS-131 UPDATE -- JSC/KSC …
03/05/2010
Description ** STS-131 UPDATE -- JSC/KSC The STS-131 Crew and space shuttle Discovery continues their progress toward an April 5 launch to the International Space Station. Discovery has been rolled out to Launch Pad 39A, while the seven STS-131 astronauts participated in launch countdown dress rehearsal activities and other prelaunch training. ** AMES CREATES A WINNER -- ARC The World Wind Java computer program developed at the Ames Research Center has earned NASA's 2009 Software of the Year Award. World-Wind is an open-source platform used to display NASA and U.S. Geological Survey data on virtual 3-D globes of Earth and other planets. ** DEEP SPACE DOWN UNDER - JPL NASA is replacing an aging fleet of 230-foot-wide antennas used in the Deep Space Network with new ''beam wave guide'' antennas that enable the network to operate on several different frequency bands within the same antenna. The replacement antennas are approximately half the size of the originals. The NASA Deep Space Network - or DSN - is an international network of antennas that supports interplanetary spacecraft missions and radio and radar astronomy observations for the exploration of the solar system and the universe. The network also supports selected Earth-orbiting missions. ** 2009 QASAR AWARD -- GRC Christopher DellaCorte, of the Glenn Research Center's Tribology & Mechanical Components branch has received the 2009 Quality and Safety Achievement or Qasar Award for figuring out what caused severe degradation of a starboard solar array alpha rotary joint on the International Space Station. ** STEM EDUCATORS WORKSHOP -- LARC Teachers became students while participating in the second annual NASA Science, Technology, Engineering, and Mathematics -- STEM -- Educators, Workshops held this year in Charlotte, N.C. The 40-session workshop provided elementary, middle and high school teachers with creative hands-on ways to incorporate NASA content into their classrooms. The workshops are specifically designed to give teachers tangible resources for immediate use in classrooms. ** FIRST ROBOTICS KICKOFF -- HQ The NASA supported ''For Inspiration and Recognition of Science and Technology'' Robotics program began its 19th year with regional competitions like this one held in Washington, D.C. FIRST is a nationwide competition that teams young people with professionals to solve engineering design problems in a competitive way.
Date 03/05/2010
Spirit Stuck in Soft Soil on …
This view from the panoramic …
11/2/09
Description This view from the panoramic camera on NASA's Mars Exploration Rover Spirit shows the terrain surrounding the location called "Troy," where Spirit became embedded in soft soil during the spring of 2009. The hundreds of images combined into this view were taken beginning on the 1,906th Martian day (or sol) of Spirit's mission on Mars (May 14, 2009) and ending on Sol 1943 (June 20, 2009). Near the center of the image, in the distance, lies Husband Hill, where Spirit recorded views from the summit in 2005. For scale, the parallel tracks are about 1 meter (39 inches) apart. The track on the right is more evident because Spirit was driving backwards, dragging its right-front wheel, which no longer rotates. The bright soil in the center foreground is soft material in which Spirit became embedded after the wheels on that side cut through a darker top layer. The composition of different layers in the soil at the site became the subject of intense investigation by tools on Spirit's robotic arm. In recent weeks, Engineers have been using test rovers on Earth to prepare for extracting the sand-trapped Spirit rover. While amnesia-like symptoms in recent days might delay the start of planned drives by Spirit geared towards extricating it, the Mars Exploration Rover team remains hopeful. "If they are intermittent and infrequent, they are a nuisance that would set us back a day or two when they occur. If the condition becomes persistent or frequent, we will need to go to an alternate strategy that avoids depending on flash memory, " said Project Manager John Callas of NASA's Jet Propulsion Laboratory. In these amnesia events, Spirit fails to record data from the day's activities onto the type of computer memory -- non-volatile "flash" memory -- that can retain the data when the rover powers down for its energy-conserving periods of "sleep." Spirit has worked on Mars for more than 69 months in what was originally planned as a three-month mission.
Date 11/2/09
G-III
Project Description NASA's m …
6/24/08
Description Project Description NASA's modified Gulfstream G-III aircraft provides a platform to test and evaluate a variety of new technologies, and can also be used to gather scientific data for geological studies or earthquake prediction. The G-III airframe has been structurally modified to incorporate a MAU-12 ejector rack on the bottom of the fuselage on which a variety of experiments can be mounted. As a Multi-Role Cooperative Research Platform, the heavily instrumented twin-turbofan aircraft provides long-term capability for efficient testing of subsonic flight experiments for NASA, the U.S. Air Force, other government agencies, academia, and private industry. Originally designated a C-20A by the Air Force, the aircraft was declared excess by that service and transferred to NASA Dryden at Edwards AFB, Calif., in September 2002. Unmanned Air Vehicle Synthetic Aperture Radar (UAVSAR) The Unmanned Air Vehicle Synthetic Aperture Radar (UAVSAR) is an Earth Science Capabilities Demonstration project jointly developed by the Jet Propulsion Laboratory and NASA Dryden Flight Research Center in which a synthetic aperture radar is being flight-validated on a Grumman Gulfstream G-III in a specially designed pod that will be interoperable with both manned and unmanned aircraft. The modified G-III provides a platform to not only test and evaluate the new radar, but can also be used to gather scientific data for geological studies on earthquake prediction. In order to support the installation of the UAVSAR pod, the G-III airframe has been structurally modified to incorporate a MAU-12 ejector rack on the bottom of the fuselage. This unique G-III modification will remain available for use by future research projects. As a Multi-Role Cooperative Research Platform, the heavily instrumented twin-turbofan aircraft provides long-term capability for efficient testing of subsonic flight experiments for NASA, the U.S. Air Force, other government agencies, academia, and private industry. Originally designated a C-20A by the Air Force, the aircraft was declared excess by that service and transferred to NASA Dryden at Edwards AFB, Calif., in September 2002. The joint use of this aircraft is a result of the NASA Dryden/Edwards Air Force Base Alliance, which shares some resources as cost-cutting measures. Photo Description NASA's Gulfstream-III research testbed lifts off the Edwards AFB runway on an envelope-expansion flight test with the UAV synthetic aperture radar pod. February 26, 2007 NASA Photo / Tom Tschida ED07-0027-39
Date 6/24/08
ER-2
News Release 06-25P ER-2 Alo …
7/1/08
Description News Release 06-25P ER-2 Aloft Again After a lengthy downtime for a major overhaul, NASA 806, one of NASA's two high-flying ER-2 Earth resources aircraft, took to the skies recently from NASA's Dryden Flight Research Center on its first science mission in over two years. The flight checked out the functionality of sensitive instruments that will calibrate and validate data from sensors installed on the recently launched CALIPSO and CloudSat weather, climate and air quality monitoring satellites during a series of missions led by NASA's Langley Research Center with support from the Jet Propulsion Laboratory in late July and August. CALIPSO, an acronym for Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations, combines an active lidar instrument with passive infrared and visible-light imagers to probe the vertical structure and properties of thin clouds and aerosols (airborne particles). The complimentary CloudSat satellite carries a cloud profiling radar system that uses microwave energy to observe cloud particles and determine the mass of water and ice within clouds. The mission will provide the first global survey of cloud properties that are critical for understanding their effects on both weather and climate. Flying in formation with three other satellites, CALIPSO and CloudSat are expected to provide scientists and meteorologists with a greater understanding of our climate system. Photo Description NASA Dryden life support technician Jim Sokolik assists pressure-suited pilot Dee Porter into the cockpit of NASA's ER-2 Earth resources aircraft. July 13, 2006 NASA Photo / Jim Ross ED06-0117-13
Date 7/1/08
Dr. Edward C. Stone
Dr. Stone was appointed Dire …
Description Dr. Stone was appointed Director of the Jet Propulsion Laboratory on January 1, 1991. In this capacity he also serves as a Vice President of Caltech. Dr. Stone earned his associate of arts degree in 1956 from Burlington Junior College before continuing his studies at the University of Chicago. After receiving his master of science (1959) and Ph.D. (1964) degrees in physics, he joined Caltech as a research fellow in physics. Stone was subsequently appointed senior research fellow and assistant professor (1967), associate professor (1971), professor of physics (1976), chairman of Caltech's Division of Physics, Mathematics and Astronomy (1983 - 1988), and Vice President for Astronomical Facilities (1988 - 1990). Since his first cosmic-ray experiments on Discoverer satellites in 1961, Stone has been a principal investigator on nine NASA spacecraft missions and a co- investigator on five other NASA missions for which he developed high resolution instruments for measuring the isotopic and elemental composition of energetic cosmic-ray nuclei. Using these instruments, Stone and his colleagues undertook some of the first studies of the isotopic composition of three distinct samples of matter. The matter arrives at Earth as cosmic rays from nearby regions in our galaxy, as solar energetic particles from the Sun, and as the anomalous component from the local interstellar medium. These instruments also have been used for studies of planetary magnetospheres, including the discovery of energetic sulfur and oxygen ions from Jupiter's satellite, Io. Stone also jointly developed a large-area electronic satellite instrument for measuring the abundance of very rare heavy galactic cosmic-ray nuclei, such as lead and platinum, and collaborated in the development of an imaging gamma-ray telescope. Since 1972, Dr. Stone has served as the project scientist for the Voyager Mission, participating in both hardware development and mission operations. Following launch in 1977 of the twin Voyager spacecraft, he coordinated the efforts of 11 teams of scientists in their studies of Jupiter, Saturn, Uranus and Neptune. Among his many scientific awards and honors, Stone was a Sloan Foundation fellow and has received the NASA Exceptional Scientific Achievement Medal, the NASA Distinguished Service Medal, the American Institute of Aeronautics and Astronautics Dryden Medal and Space Science Award, and the NASA Distinguished Public Service Medal. He is the recipient of the NASA Outstanding Leadership Medal, the Aviation Week and Space Technology Aerospace Laurels Award, the National Space Club Science Award, the Association for Unmanned Vehicle Systems National Award for Operations, the National Medal of Science, the American Philosophical Society Magellanic Award, the American Academy of Achievement Golden Plate Award and the COSPAR Award for Outstanding Contribution to Space Science. He has received honorary degrees from Washington University, St. Louis, Harvard University, and the University of Chicago. Stone is a member of the National Academy of Sciences and the International Academy of Astronautics. He is a fellow of the American Physical Society, the American Geophysical Union, and the American Institute of Aeronautics and Astronautics. He is also a member of the American Astronomical Society, the International Astronomical Union and an honorary member of the Astronomical Society of the Pacific. #####
Radar images of newly discov …
8/26/99
Date 8/26/99
Description Radar images of newly discovered 1999 JM8, an unusually large asteroid with a slow rotation rate, reveal the object's bizarre shape as it streaked past Earth in late July and early August at a close approach of 8.5 million kilometers (5.3 million miles), about 22 times the distance between the Earth and the Moon. The object, thought to be several miles wide, was captured by a radar team led by Dr. Lance Benner of NASA's Jet Propulsion Laboratory, Pasadena, CA, after its discovery on May 13, 1999, using NASA's Goldstone radar facility in California and the Arecibo Observatory's radar in Puerto Rico. The images, clockwise from the top left, were taken on August 5, July 28, August 2 and August 1. Radar illumination is from the top and the asteroid's rotation is clockwise. The Goldstone images taken on July 28 have a vertical resolution of 38 meters per pixel and those taken on August 1 have a vertical resolution of 19 meters per pixel. The images taken by the Arecibo Observatory on August 2 and 5 have a vertical resolution of 15 meters per pixel. 1999 JM8 resembles Toutatis, a similarly sized, slowly rotating asteroid that also crosses Earth's orbit and that last flew past the planet on November 29, 1996, at a close approach of 5.3 million kilometers (3.3 million miles). Discovery of a second large Earth-crosser with a similarly slow spin rate suggests that slowly tumbling asteroids are fairly common among near-Earth objects. However, although collisions are thought to be the primary process determining asteroid spin states, astronomers do not know how these slow, complex rotation states come about. 1999 JM8 was discovered with a U. S. Air Force telescope in New Mexico that is part of MIT's Lincoln Near Earth Asteroid Research project. Radar observations by Ostro, Benner and their team were supported by NASA's Office of Space Science, Washington, DC. The Goldstone Solar System Radar is part of NASA's Deep Space Network. The Arecibo Observatory, in Puerto Rico, is part of the National Astronomy and Ionosphere Center, which is operated by the Cornell University under a cooperative agreement with the National Science Foundation and with support from NASA. JPL is a division of the California Institute of Technology, Pasadena, CA. #####
KENNEDY SPACE CENTER, FLA. - …
10/15/97
Date 10/15/97
Description KENNEDY SPACE CENTER, FLA. -- A seven-year journey to the ringed planet Saturn begins with the liftoff of a Titan IVB/Centaur carrying the Cassini orbiter and its attached Huygens probe. This spectacular streak shot was taken from Hangar AF on Cape Canaveral Air Station, with a solid rocket booster retrieval ship in the foreground. Launch occurred at 4:43 a.m. EDT, Oct. 15, from Launch Complex 40 on Cape Canaveral Air Station. After a 2.2-billion mile journey that will include two swingbys of Venus and one of Earth to gain additional velocity, the two-story tall spacecraft will arrive at Saturn in July 2004. The orbiter will circle the planet for four years, its complement of 12 scientific instruments gathering data about Saturn's atmosphere, rings and magnetosphere and conducting closeup observations of the Saturnian moons. Huygens, with a separate suite of six science instruments, will separate from Cassini to fly on a ballistic trajectory toward Titan, the only celestial body besides Earth to have an atmosphere rich in nitrogen. Scientists are eager to study further this chemical similarity in hopes of learning more about the origins of our own planet Earth. Huygens will provide the first direct sampling of Titan's atmospheric chemistry and the first detailed photographs of its surface. The Cassini mission is an international effort involving NASA, the European Space Agency (ESA) and the Italian Space Agency, Agenzia Spaziale Italiana (ASI). The Jet Propulsion Laboratory manages the U.S. contribution to the mission for NASA's Office of Space Science. The major U.S. contractor is Lockheed Martin, which provided the launch vehicle and upper stage, spacecraft propulsion module and radioisotope thermoelectric generators that will provide power for the spacecraft. The Titan IV/Centaur is a U.S. Air Force launch vehicle, and launch operations were managed by the 45th Space Wing.
KENNEDY SPACE CENTER, FLA. - …
10/15/97
Date 10/15/97
Description KENNEDY SPACE CENTER, FLA. -- A seven-year journey to the ringed planet Saturn begins with the liftoff of a Titan IVB/Centaur carrying the Cassini orbiter and its attached Huygens probe. Launch occurred at 4:43 a.m. EDT, Oct. 15, from Launch Complex 40 on Cape Canaveral Air Station. After a 2.2-billion mile journey that will include two swingbys of Venus and one of Earth to gain additional velocity, the two-story tall spacecraft will arrive at Saturn in July 2004. The orbiter will circle the planet for four years, its complement of 12 scientific instruments gathering data about Saturn's atmosphere, rings and magnetosphere and conducting closeup observations of the Saturnian moons. Huygens, with a separate suite of six science instruments, will separate from Cassini to fly on a ballistic trajectory toward Titan, the only celestial body besides Earth to have an atmosphere rich in nitrogen. Scientists are eager to study further this chemical similarity in hopes of learning more about the origins of our own planet Earth. Huygens will provide the first direct sampling of Titan's atmospheric chemistry and the first detailed photographs of its surface. The Cassini mission is an international effort involving NASA, the European Space Agency (ESA) and the Italian Space Agency, Agenzia Spaziale Italiana (ASI). The Jet Propulsion Laboratory manages the U.S. contribution to the mission for NASA's Office of Space Science. The major U.S. contractor is Lockheed Martin, which provided the launch vehicle and upper stage, spacecraft propulsion module and radioisotope thermoelectric generators that will provide power for the spacecraft. The Titan IV/Centaur is a U.S. Air Force launch vehicle, and launch operations were managed by the 45th Space Wing.
KENNEDY SPACE CENTER, FLA. - …
10/15/97
Date 10/15/97
Description KENNEDY SPACE CENTER, FLA. -- A seven-year journey to the ringed planet Saturn begins with the liftoff of a Titan IVB/Centaur carrying the Cassini orbiter and its attached Huygens probe. Launch occurred at 4:43 a.m. EDT, Oct. 15, from Launch Complex 40 on Cape Canaveral Air Station. After a 2.2-billion mile journey that will include two swingbys of Venus and one of Earth to gain additional velocity, the two-story tall spacecraft will arrive at Saturn in July 2004. The orbiter will circle the planet for four years, its complement of 12 scientific instruments gathering data about Saturn's atmosphere, rings and magnetosphere and conducting closeup observations of the Saturnian moons. Huygens, with a separate suite of six science instruments, will separate from Cassini to fly on a ballistic trajectory toward Titan, the only celestial body besides Earth to have an atmosphere rich in nitrogen. Scientists are eager to study further this chemical similarity in hopes of learning more about the origins of our own planet Earth. Huygens will provide the first direct sampling of Titan's atmospheric chemistry and the first detailed photographs of its surface. The Cassini mission is an international effort involving NASA, the European Space Agency (ESA) and the Italian Space Agency, Agenzia Spaziale Italiana (ASI). The Jet Propulsion Laboratory manages the U.S. contribution to the mission for NASA's Office of Space Science. The major U.S. contractor is Lockheed Martin, which provided the launch vehicle and upper stage, spacecraft propulsion module and radioisotope thermoelectric generators that will provide power for the spacecraft. The Titan IV/Centaur is a U.S. Air Force launch vehicle, and launch operations were managed by the 45th Space Wing.
KENNEDY SPACE CENTER, FLA. - …
10/15/97
Date 10/15/97
Description KENNEDY SPACE CENTER, FLA. -- A seven-year journey to the ringed planet Saturn begins with the liftoff of a Titan IVB/Centaur carrying the Cassini orbiter and its attached Huygens probe. Launch occurred at 4:43 a.m. EDT, Oct. 15, from Launch Complex 40 on Cape Canaveral Air Station. After a 2.2-billion mile journey that will include two swingbys of Venus and one of Earth to gain additional velocity, the two-story tall spacecraft will arrive at Saturn in July 2004. The orbiter will circle the planet for four years, its complement of 12 scientific instruments gathering data about Saturn's atmosphere, rings and magnetosphere and conducting closeup observations of the Saturnian moons. Huygens, with a separate suite of six science instruments, will separate from Cassini to fly on a ballistic trajectory toward Titan, the only celestial body besides Earth to have an atmosphere rich in nitrogen. Scientists are eager to study further this chemical similarity in hopes of learning more about the origins of our own planet Earth. Huygens will provide the first direct sampling of Titan's atmospheric chemistry and the first detailed photographs of its surface. The Cassini mission is an international effort involving NASA, the European Space Agency (ESA) and the Italian Space Agency, Agenzia Spaziale Italiana (ASI). The Jet Propulsion Laboratory manages the U.S. contribution to the mission for NASA's Office of Space Science. The major U.S. contractor is Lockheed Martin, which provided the launch vehicle and upper stage, spacecraft propulsion module and radioisotope thermoelectric generators that will provide power for the spacecraft. The Titan IV/Centaur is a U.S. Air Force launch vehicle, and launch operations were managed by the 45th Space Wing.
KENNEDY SPACE CENTER, FLA. - …
10/15/97
Date 10/15/97
Description KENNEDY SPACE CENTER, FLA. -- A seven-year journey to the ringed planet Saturn begins with the liftoff of a Titan IVB/Centaur carrying the Cassini orbiter and its attached Huygens probe. Launch occurred at 4:43 a.m. EDT, Oct. 15, from Launch Complex 40 on Cape Canaveral Air Station. After a 2.2-billion mile journey that will include two swingbys of Venus and one of Earth to gain additional velocity, the two-story tall spacecraft will arrive at Saturn in July 2004. The orbiter will circle the planet for four years, its complement of 12 scientific instruments gathering data about Saturn's atmosphere, rings and magnetosphere and conducting closeup observations of the Saturnian moons. Huygens, with a separate suite of six science instruments, will separate from Cassini to fly on a ballistic trajectory toward Titan, the only celestial body besides Earth to have an atmosphere rich in nitrogen. Scientists are eager to study further this chemical similarity in hopes of learning more about the origins of our own planet Earth. Huygens will provide the first direct sampling of Titan's atmospheric chemistry and the first detailed photographs of its surface. The Cassini mission is an international effort involving NASA, the European Space Agency (ESA) and the Italian Space Agency, Agenzia Spaziale Italiana (ASI). The Jet Propulsion Laboratory manages the U.S. contribution to the mission for NASA's Office of Space Science. The major U.S. contractor is Lockheed Martin, which provided the launch vehicle and upper stage, spacecraft propulsion module and radioisotope thermoelectric generators that will provide power for the spacecraft. The Titan IV/Centaur is a U.S. Air Force launch vehicle, and launch operations were managed by the 45th Space Wing.
Mars Polar Lander
A bottom view of the Mars Po …
Description A bottom view of the Mars Polar Lander spacecraft. The spacecraft will travel 10 months from Earth to Mars to land near the southern polar cap in December 1999 and carry out a three- month mission to search for traces of subsurface water in this frozen, layered terrain. The lander carries three scientific packages: the Mars descent imager, furnished by Malin Space Science Systems, Inc., which will view the landing site at increasingly higher resolution, the atmospheric lidar experiment, provided by Russia's Space Research Institute, which will measure the presence and height of atmospheric hazes, along with a miniature microphone provided by The Planetary Society, to record the sounds of Mars, and the Mars Volatile and Climate Surveyor science package. The mission is part of NASA's Mars Surveyor program, a sustained program of robotic exploration of the red planet, managed by the Jet Propulsion Laboratory for NASA's Office of Space Science, Washington, DC. Lockheed Martin Astronautics is NASA's industrial partner in the mission. #####
Mars Polar Lander
A top view of the Mars Polar …
Description A top view of the Mars Polar Lander spacecraft. The spacecraft will travel 10 months from Earth to Mars to land near the southern polar cap in December 1999 and carry out a three- month mission to search for traces of subsurface water in this frozen, layered terrain. The lander carries three scientific packages: the Mars descent imager, furnished by Malin Space Science Systems, Inc., which will view the landing site at increasingly higher resolution, the atmospheric lidar experiment, provided by Russia's Space Research Institute, which will measure the presence and height of atmospheric hazes, along with a miniature microphone provided by The Planetary Society, to record the sounds of Mars, and the Mars Volatile and Climate Surveyor science package. The mission is part of NASA's Mars Surveyor program, a sustained program of robotic exploration of the red planet, managed by the Jet Propulsion Laboratory for NASA's Office of Space Science, Washington, DC. Lockheed Martin Astronautics is NASA's industrial partner in the mission. #####
Stardust Trajectory
Stardust, a spacecraft desig …
11/22/95
Date 11/22/95
Description Stardust, a spacecraft designed to gather samples of dust spewed from a comet and return the dust to Earth for detailed analysis, has been selected to become the fourth flight mission in NASA's Discovery program. The spacecraft, to be launched in February 1999, will also gather and return samples of interstellar dust encountered during its trip through the solar system to fly by Comet Wild-2 in January 2004. Comet Wild-2 is a "fresh comet" because its orbit was deflected from much farther out in the solar system by the gravitational attraction of Jupiter in 1974. Stardust will approach as close as 100 kilometers (62 miles) to the comet's nucleus, capturing cometary samples with an unusual material called aerogel. A return capsule carrying the captured dust samples would parachute to Earth in a landing on a dry Utah lake bed in January 2006. Stardust will also carry an optical camera that should return cometary images with 10 times the clarity of those taken of Halley's Comet by previous space missions. A mass spectrometer provided by Germany also will perform compositional analysis of the samples while in-flight. The Stardust mission team will be led by Principal Investigator Dr. Donald Brownlee of the University of Washington in Seattle, with Lockheed-Martin Astronautics, Denver, as the contractor building the spacecraft. NASA's Jet Propulsion Laboratory, Pasadena, CA, will manage the project for NASA's Office of Space Science, Washington, D.C. #####
NASA Scatterometer
This is a photograph of the …
1/25/96
Date 1/25/96
Description This is a photograph of the NASA Scatterometer (NSCAT) mated to Japan's Advanced Earth Observation Satellite (ADEOS) in a clean room at the Tsukuba Space Center, north of Tokyo. The NSCAT instrument is located on the forward end of the spacecraft and consists of six, 3-meter-long antennas that are shown at the top of the satellite in this photograph. Three electronic subsystems are located under the antennas. The instrument's mass is 280 kilograms and it uses 240 watts of power. NSCAT is a microwave radar that will measure both the speed and direction of winds over the global oceans. Scientists will use NSCAT's data to study ocean circulation, global climate change and regional weather patterns. The instrument will record data over 90 percent of the ice-free global oceans every two days during its three-year mission. The mission is the first major Earth resources collaboration between NASA and the Japanese Space Agency. The ADEOS spacecraft is the largest spacecraft Japan has developed. It is has a mass of 3,500 kilograms and generates 4.5 kilowatts of electrical power. The bus dimensions are 4 meters by 4 meters by 5 meters and, with the NSCAT antennas deployed, the spacecraft has a total height of 11 meters. It will be launched into a Sun- synchronous polar orbit at an altitude of 797 kilometers by the Japanese H-II rocket on July 31, 1996, at 6:15 pm Pacific Daylight Time. The Jet Propulsion Laboratory manages the NSCAT instrument for NASA's Office of Mission to Planet Earth. #####
Galileo Red Spot
This view of Jupiter's Great …
8/13/96
Date 8/13/96
Description This view of Jupiter's Great Red Spot is a mosaic of two images taken by the Galileo spacecraft. The image was created using two filters, violet and near-infrared, at each of two camera positions. The Great Red Spot is a storm in Jupiter's atmosphere and is at least 300 years-old. Winds blow counterclockwise around the Great Red Spot at about 400 kilometers per hour (250 miles per hour). The size of the storm is more than one Earth diameter (13,000 kilometers or 8,000 miles) in the north-south direction and more than two Earth diameters in the east-west direction. In this oblique view, where the Great Red Spot is shown on the planet's limb, it appears longer in the north-south direction. The image was taken on June 26, 1996. The Galileo mission is managed by NASA's Jet Propulsion Laboratory.
Eruption on Io
This image, taken by NASA's …
8/13/96
Date 8/13/96
Description This image, taken by NASA's Galileo spacecraft, shows a new blue- colored volcanic plume extending about 100 kilometers (about 60 miles) into space from Jupiter's moon Io (see inset at lower left). The blue color of the plume is consistent with the presence of sulfur dioxide gas and "snow" condensing from the gas as the plume expands and cools. Galileo images have also shown that the Ra Patera plume glows in the dark, perhaps due to the fluorescence of sulfur and oxygen ions created by the breaking apart of sulfur dioxide molecules by energetic particles in the Jovian magnetosphere. The images at right show a comparison of changes seen near the volcano Ra Patera since the Voyager spacecraft flybys of 1979 (windows at right show Voyager image at top and Galileo image at bottom). This eruptive plume is an example of a new type of volcanic activity discovered during Voyager's flyby in 1979, believed to be geyser- like eruptions driven by sulfur dioxide or sulfur gas erupting and freezing in Io's extremely tenuous atmosphere. Volcanic eruptions on Earth cannot throw materials to such high altitudes. Ra Patera is the site of dramatic surface changes. An area around the volcano of about 40,000 square kilometers, area about the size of New Jersey, has been covered by new volcanic deposits. The image was taken in late June 28, 1996 from a distance of 972,000 kilometers (604,000 miles). The Galileo mission is managed by NASA's Jet Propulsion Laboratory.
The Saturn-bound Cassini spa …
8/16/99
Date 8/16/99
Description The Saturn-bound Cassini spacecraft will fly past the Earth Tuesday, August 17, at 8:28 p.m. Pacific Daylight Time (August 18 at 03:28 Universal Time). Launched in October 1997, Cassini will gain a boost in speed during its Earth flyby, which occurs at an altitude of 1,166 kilometers (725 miles) over the eastern South Pacific at -23.5 degrees latitude and 231.5 degrees longitude. Two successful flybys of Venus, next week's flyby of Earth, and a flyby of Jupiter in December 2000 all give Cassini the additional speed it needs to reach Saturn in 2004. Cassini is a joint endeavor of NASA, the European Space Agency and the Italian Space Agency, and is managed for NASA's Office of Space Science by the Jet Propulsion Laboratory (JPL). JPL is a division of the California Institute of Technology, Pasadena, Calif. [Image for NASA-JPL was created by John Aiello of JPL.]
Four views of typhoons
These four images show a ser …
10/3/96
Date 10/3/96
Description These four images show a series of wind fields from the first set of NASA Scatterometer wind speed and direction measurements. The sequence was taken every 12 hours over two days, September 20 and 21, 1996. The four images show typhoons Violet and Tom as yellow-orange spiral features. Typhoon Violet is closer to Japan and during the two days of observations the storm moved landward, causing death and severe property damage. Typhoon Tom is observed moving out into the ocean and away from Japan. The background color indicates wind speed, with blue being low winds and red moderate winds, yellow is high winds. The the white arrows show the direction of the wind. Data like these are being used by the National Weather Service, an agency of the National Oceanic and Atmospheric Administration in their global forecast models. NSCAT was launched August 16, 1996, onboard Japan's Advanced Earth Observing Satellite. The mission represents the first major collaboration in Earth remote sensing between the two nations. JPL developed, built and manages the NSCAT instrument for NASA's Mission to Planet Earth program. This "first look" image is still uncalibrated, but images like this will be routinely available after completion of the calibration validation phase on the project's World Wide Web site at http://www.jpl.nasa.gov/winds. #####
NSCAT Pacific Map
This image shows ocean surfa …
10/3/96
Date 10/3/96
Description This image shows ocean surface wind speeds and directions over the Pacific Ocean on September 21, 1996, as they were measured by the NASA Scatterometer onboard Japan's Advanced Earth Observing Satellite. The background color indicates wind speed with blue being low winds, red is moderate winds, and yellow is high winds. The white arrows show the direction of the wind. The yellow- orange spiral features in the upper left near Japan are typhoons Violet and Tom. Typhoon Tom is in the open ocean. Typhoon Violet is just south of Japan. After these data were taken, Typhoon Violet struck the east coast of Japan, causing damage and deaths. Strong winter storm activity is also shown in orange in the southern hemisphere. NSCAT provides continuous measurements of ocean surface wind speeds and direction from space, which gives forecasters better information to predict the behavior of storms such as Violet and Tom. Data like these are being used by the National Weather Service, an agency of the National Oceanic and Atmospheric Administration in their global forecast models. NSCAT was launched August 16, 1996. The mission represents the first major collaboration in Earth remote sensing between the two nations. JPL developed, built and manages the NSCAT instrument for NASA's Mission to Planet Earth program. This "first look" image is still uncalibrated, but images like this will be routinely available after completion of the calibration validation phase on the project's World Wide Web site at http://www.jpl.nasa.gov/winds. #####
NSCAT Global Wind Speed
This map shows a global thre …
10/3/96
Date 10/3/96
Description This map shows a global three-day average of wind speeds over the world's oceans, as measured by the NASA Scatterometer onboard Japan's Advanced Earth Observing Satellite. The uncalibrated data were taken from September 20 to 22, 1996. The color indicates wind speed, with purple and blue being low winds, green to yellow as moderate winds, and orange to red as high winds. Typhoons Violet and Tom are shown as yellow-orange spirals near Japan. The usual high level of winter storm activity is also shown in yellow in the southern hemisphere near Antarctica in an area sailors refer to as "the roaring forties." NSCAT wind measurements cover 90 percent of the ocean surface each day, achieving nearly 100 percent coverage within three days. NSCAT provides continuous measurements of ocean surface wind speeds from space, which will help meteorologists better predict the behavior of storms. Data like these are being used by the National Weather Service, an agency of the National Oceanic and Atmospheric Administration in their global forecast models. NSCAT was launched August 16, 1996. The mission represents the first major collaboration in Earth remote sensing between the two nations. JPL developed, built and manages the NSCAT instrument for NASA's Mission to Planet Earth program. This "first look" image is still uncalibrated, but images like this will be routinely available after completion of the calibration validation phase on the project's World Wide Web site at http://www.jpl.nasa.gov/winds. #####
NSCAT/South America
This is a radar image of the …
11/18/96
Date 11/18/96
Description This is a radar image of the Amazon rainforest in South America taken by the NASA Scatterometer (NSCAT) onboard Japan's Advanced Earth Observing Satellite. The scatterometer's primary function is to study winds over the oceans, but scientists have devised a way of studying changes in the instrument's radar backscatter to look at land surfaces as well. The scatterometer's radar is sensitive to conditions on the Earth's surface, such as the type and density of vegetation. Tropical rainforests are critical to the climatic health of the Earth and are thought to contain half of all the world's species. This false color image is being used by scientists to identify types of vegetation on the surface. Blue and purple areas are tropical rainforest and green and yellow regions are woodlands and savanna. Mountains and degraded farm lands show up as black. The scatterometer instrument is a new tool in land studies and allows for comparisons over long time spans in order to assess the extent of tropical deforestation in this sensitive area. NSCAT was launched from Japan on August 16, 1996, and the mission represents the first major collaboration between the two nations in Earth remote- sensing. JPL developed, built and manages the NSCAT instrument for NASA's Mission to Planet Earth program. #####
NSCAT/Antarctica
This image of Antarctica and …
11/18/96
Date 11/18/96
Description This image of Antarctica and the surrounding sea-ice pack was constructed from six days of data taken by the NASA Scatterometer (NSCAT) onboard Japan's Advanced Earth Observing Satellite in September 1996. The scatterometer's primary function is to study winds over the oceans, but scientists have devised a way of studying changes in the instrument's radar backscatter to look at land and ice surfaces as well. The black circle in the center of the image is an area where no data were collected due to the orbit of the satellite. The dark band around the continent is the evolving sea-ice pack. The white, rectangular object in the ice pack on the lower left of the image is a 100-kilometer by 200- kilometer "super iceberg" that broke off the Thwaites ice tongue and is now circulating in the sea-ice pack. Other large icebergs are also visible in the image. Antarctica is covered with a thick ice sheet which appears very bright in the image because of the way the snow crust and refrozen ice reflect the scatterometer's radar signal. Details visible in the glacial ice cover show the locations of ice "hills" and "valleys" that give scientists new information about how the ice is flowing under the surface. Scientists are using images like this to understand the effects of the ice pack on the ocean and climate systems. The polar regions play a central role in regulating global climate, and it is important to accurately record and monitor the extent and surface conditions of the Earth's major ice masses. Such monitoring can only be done using spaceborne sensors, and the scatterometer radar remote sensors are uniquely suited for mapping the polar regions since the radar can image the surface through clouds, regardless of sunlight conditions. This instrument provides frequent, all weather, all year monitoring of these vital regions of the Earth. NSCAT was launched from Japan on August 16, 1996. The mission represents the first major collaboration between the two nations in Earth remote- sensing. JPL developed, built and manages the NSCAT instrument for NASA's Mission to Planet Earth program. #####
NSCAT global image
This is a global image of la …
11/18/96
Date 11/18/96
Description This is a global image of land surfaces as seen by the NASA Scatterometer (NSCAT) onboard Japan's Advanced Earth Observing Satellite. The scatterometer's primary function is to study winds over the oceans, but scientists have devised a way of studying changes in the instrument's radar backscatter to look at land surfaces as well. The scatterometer's radar is sensitive to conditions on the Earth's surface. The brightest regions in this image are glacial ice sheets in Greenland and Antarctica. Tropical rainforests along the equator in South America, Africa and Southeast Asia are relatively bright due to their vegetation and soil moisture. Very dry, sandy deserts show up as black in this image. Some examples are the Empty Quarter in Saudia Arabia, the Gobi Desert in Western China and the Sahara Desert in North Africa. The light area just below the wide, dark band in Africa is known as the Sahel, a region that lightens and darkens with the changing seasons and drought conditions in Africa. The seasonal radar response of the Sahel is thought to be a sensitive indicator of desertification due to global warming and climate change. NSCAT was launched from Japan on August 16, 1996. The mission represents the first major collaboration between the two nations in Earth remote-sensing. JPL developed, built and manages the NSCAT instrument for NASA's Office of Mission to Planet Earth. #####
AVIRIS/Malibu Fire
These two images of the Sant …
11/13/96
Date 11/13/96
Description These two images of the Santa Monica Mountains were taken by NASA's Airborne Visible and Infra-Red Imaging Spectrometer (AVIRIS). They show changes on the ground caused by the Calabasas/Malibu fire that started on October 21. The image on the left was taken on October 17, four days before the fire. The image on the right was taken on October 23. Scientists and fire agencies are using these images to map the chaparral vegetation in the region to help them understand the potential for future wild fires. The area of the image measures 10 kilometers by 11 kilometers (6.2 miles by 6.8 miles) and is centered near Agoura Hills. The line near the top of the image is the 101 Freeway. In the image on the right, the dark purple region is a portion of the fire scar. The road just to the left of the burn area is Las Virgenes Road. Malibu Lake is the black, arrow-shaped region. Mulholland Highway is the red line just north of Malibu Lake. The bottom part of the image is Malibu Creek State Park. The AVIRIS instrument flies aboard a NASA ER-2 airplane. Earth scientists use AVIRIS to conduct research and applications across a range of scientific disciplines, including ecology, geology, mineral hazards, snow and ice, coastal and inland waters, and wild fires. AVIRIS was developed and is managed by the Jet Propulsion Laboratory for NASA's Office of Mission to Planet Earth. #####
Gaza Strip KidSat image
Alex Amerri and Jenny Shanle …
1/22/97
Date 1/22/97
Description Alex Amerri and Jenny Shanley, Kidsat Gaza Strip, Mediterranean Sea KidSat Image STS081.ESC.01002601 This image, taken with the KidSat digital camera aboard the space shuttle Atlantis during STS-81, was requested by Buist Academy School in Charleston, S.C. for the purpose of studying the coast of Israel and the Mediterranean Sea. The Kidsat electronic still camera, using a 50 mm lens, was used to take this picture which covers an area 102.25 km long and 152.98 km wide. The image is centered at 32.7 degrees north latitude, 34.22 degrees east longitude. Due to shuttle orientation, north is located at approximately eleven o'clock in this image. The Gaza Strip is inhabited by more than 800,000 Palestinian Arabs and approximately 4,800 Jewish settlers. This image shows the Gaza Strip and the Mediterranean Sea. The border can be seen within the image because of a difference in vegetation patterns, the Egyptian side being less vegetated perhaps due to heavy use of the land for grazing. Like the West Bank, the Gaza Strip was included as part of the British Mandate that lasted from 1917 to 1948. In 1948, an area west of the Jordan River was given to the Jewish people, and the country of Israel was established. Palestinian refugees settled in Gaza and in the West Bank. Since 1948, the Arabs and the Israelis have fought four wars over land. More recently, peace negotiations have occurred between Israeli Prime Minister Benjamin Netanyahu and Palestinian Authority President Yasser Arafat. KidSat gives students across the country a chance to view and learn about Earth using and commanding their own instruments in space. The KidSat project is a result of the effort and collaboration of Johns Hopkins University's Institute for Academic Advancement of Youth, the University of California, San Diego, and NASA's Jet Propulsion Laboratory. KidSat includes a payload of digital still and video cameras that fly on the Space Shuttle. Students operate these cameras from their classrooms, sending instructions to KidSat Mission Control Center at UC San Diego via the Internet to photograph specific regions of Earth they wish to study. Image data are sent to the KidSat data system during the mission and these images are accessible in the classroom in real time, again using the Internet. At JPL, students on the exploration team research the surrounding area of images and write a summary of its history as shown above. The KidSat project allows students to explore Earth from space and learn about its past and its fragile, ever-changing environment. Images and student results will be posted on the KidSat home page. Interested public school districts, teachers, and students may view the images and information provided by students during the mission via this World Wide Web site: http://www.jpl.nasa.gov/kidsat The KidSat pilot program is sponsored by NASA's Office of Human Resources and Education, with support from the Offices of Space Flight, Mission to Planet Earth and Space Science. #####
Venice, Italy & the Alps Kid …
Conray Tseng, KidSat KidSat …
1/22/97
Date 1/22/97
Description Conray Tseng, KidSat KidSat Image STS081.ESC.01002012 This KidSat image spans the region of Venetia from the city of Venice, Italy, on the coast of the Adriatic Sea north to the snow-capped Alps. Venice appears in the upper right part of the image, and the Alps appear in the upper left. This image is 97.78 km long by 146.31 km wide and is centered at 45.56 degrees north latitude, 11.48 degrees east longitude. Due to shuttle orientation, north is located at approximately ten o'clock in this image. It was taken by the KidSat electronic still camera, using a 50 mm lens, from the Space Shuttle Atlantis flight STS-81 at an altitude of 264.57 km. The image was requested by the Buist Academy Student Mission Operations Center in Charleston, South Carolina. The students will use the image in their classrooms to study the rivers and channels of Venice and to compare the cities of Venice and Paris, France. Venice's Grand Canal is barely visible in the image. Venice was one of the centers of science, knowledge and art during the Renaissance, as well as a major trade center for goods from Asia. Located near fishing and forest resources, it was first settled by a variety of people that included war refugees from Troy and immigrants from what are now the Slavic nations. The first settlement, consisting mostly of wood buildings, was destroyed after a massive sea quake, little remains of the original city. Settlements spread to encompass the islands in the mouth of the river Brenta and now cover a total 117 islands. In the nearby Alps are several waterfalls which, since 1977, have been the site of many ice climbing missions. KidSat gives students across the country a chance to view and learn about Earth using and commanding their own instruments in space. The KidSat project is a result of the effort and collaboration of NASA's Jet Propulsion Laboratory, Johns Hopkins University's Institute for Academic Advancement of Youth and the University of California, San Diego. Kidsat includes a payload of digital still and video cameras that fly on the Space Shuttle. Students operate these cameras from their classrooms, sending instructions to the Kidsat Mission Control Center at UC San Diego via the Internet to photograph specific regions of Earth they wish to study. Image data are sent to the Kidsat Data System at JPL during the mission and these images are accessible in the classroom in near-real time, again using the Internet. At JPL, students on the exploration team research the images. The KidSat project allows students to explore Earth from space and learn about its past and its fragile, ever-changing environment. Images and student results will be posted on the KidSat home page. Interested public school districts, teachers, and students may view the images and information provided by students during the mission via this World Wide Web site: http://www.jpl.nasa.gov/kidsat The KidSat pilot program is sponsored by NASA's Office of Human Resources and Education, with support from the Offices of Space Flight, Mission to Planet Earth and Space Science. #####
The image above shows an art …
Description The image above shows an artist's rendition of a flow of events in a 15-billion year history of the Universe from the Big Bang at upper right counter-clockwise to the formation of life on Earth at lower right. Image Credit: Pat Rawlings, for the Jet Propulsion Laboratory.
Airborne images of the Willo …
9/3/99
Date 9/3/99
Description Airborne images of the Willow fire in Southern California's San Bernardino County, taken September 1 from a NASA ER-2 airplane, show the blaze in wavelengths that are not visible to the naked eye and would vastly improve firefighters' ability to contain them. Whereas the human eye can only see in the visible portion of the light spectrum, from 400 nanometers to 700 nanometers, NASA's Airborne Visible/Infrared Imaging Spectrometer, known as AVIRIS, measures the full spectrum of light from 400 nanometers to 2,500 nanometers. (A nanometer is one-billionth of a meter.) The color portion of the first set of images, beginning at the left, shows the Willow fire as it was seen from an aircraft on September 1. Vegetation is dark green and smoke can be seen rising from the fire. To the left of the color image is the first infrared image taken at a wavelength of 500 nanometers. The light is diffused by smoke particles and vegetation appears dark due to the absorption of chlorophyll molecules. In the next spectral image, taken at 1,000 nanometers, less of the light is scattered by the smoke and the surface near the fire is seen more clearly. At this wavelength of light, healthy vegetation appears bright because of the light scattering of leaves, while scorched vegetation appears dark. At the still longer wavelength of 1,500 nanometers, the smoke is nearly transparent. At this wavelength, AVIRIS began to clearly measure the actual light coming from the burning fire. At 2,000 nanometers, only light from the burning fires can be seen. In this image the major fires and many small hotspots can be seen. In the future, AVIRIS will continue to be used to gather valuable information on forest fire risk in both wilderness and urban areas. Currently, important research is being pursued by Drs. Dar Roberts of the University of California, Santa Barbara, Susan Ustin of the University of California, Davis and John Gamon of California State University, Los Angeles, as well as many others. AVIRIS was designed, built and is operated by the Jet Propulsion Laboratory for NASA's Earth Science Enterprise. With full spectral coverage, AVIRIS data are used to carry out a range of research activities and applications covering ecology, geology, coastal and inland water studies, snow and ice studies, wild fires, environmental contamination and urban studies. Data collection is made possible by NASA's ER-2 aircraft, which is housed at the Dryden Research Center at Edwards Air Force Base, CA. JPL is a division of the California Institute of Technology, Pasadena, CA. #####
Airborne images of the Willo …
9/3/99
Date 9/3/99
Description Airborne images of the Willow fire in Southern California's San Bernardino County, taken September 1 from a NASA ER-2 airplane, show the blaze in wavelengths that are not visible to the naked eye. This set of infrared snapshots, taken by the Jet Propulsion Laboratory's Airborne Visible/Infrared Imaging Spectrometer, represents all of the infrared camera's 224 spectral channels, stacked in the image-cube format to depict the full AVIRIS measurement. The top and right panels show the full spectrum measured for each spatial element along the along the edge of the image. Spectroscopic or color analysis enables scientists to determine temperature variations, adjacent vegetation type and biomass, as well as the water content of leaves in the vegetation. These are important factors for understanding, controlling and extinguishing fires. AVIRIS was designed, built and is operated by the Jet Propulsion Laboratory for NASA's Earth Science Enterprise. Data collection are made possible by NASA's ER-2 aircraft, which is housed at the Dryden Research Center at Edwards Air Force Base, CA. JPL is a division of the California Institute of Technology, Pasadena, CA. #####
Visible Jovian Aurora
Jupiter's aurora on the nigh …
6/5/97
Date 6/5/97
Description Jupiter's aurora on the night side of the planet is seen here at five different wavelengths. Jupiter's bright crescent, which is about half illuminated, is out of view to the right. North is at the top. The images are centered at 57 degrees north and 184 degrees West and were taken on April 2, 1997 at a range of 1.7 million kilometers (1.05 million miles) by the Solid State Imaging (SSI) camera system aboard NASA's Galileo spacecraft. Although Jupiter's aurora had been imaged from Earth in the ultraviolet and infrared, these are the first images at visible wavelengths, where most of the emission takes place. CLR stands for clear (no filter) and shows the integrated brightness at all wavelengths. The other panels show the violet, green, red, and 889 nanometer-wavelength filtered images. The brightness of the aurora is roughly independent of wavelength, at least at the spectral resolution obtainable with these filters. As on Earth, the aurora is caused by electrically charged particles striking the upper atmosphere, causing the molecules of the atmosphere to glow. The brightness in the different filters contains information about the energy of the impinging particles and the composition of the upper atmosphere. If atomic hydrogen were the only emitter, the light would be much stronger in the red filter, which is not consistent with the observed distribution. The Jet Propulsion Laboratory, Pasadena, CA manages the mission for NASA's Office of Space Science, Washington, DC. This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at URL http://www.jpl.nasa.gov/galileo. Background information and educational context for the images can be found at URL http://www.jpl.nasa.gov/galileo/sepo #####
LOS ALAMOS FIRE IMAGED BY NA …
The fire that has raged out …
5/19/00
Date 5/19/00
Description The fire that has raged out of control this month near Los Alamos, New Mexico, was captured in a series of images by the Multi-angle Imaging Spectro-Radiometer (MISR) on NASA's Terra satellite. The picture is available at http://www.jpl.nasa.gov/pictures/misr These true-color images covering north-central New Mexico capture the bluish-white smoke plume of the Los Alamos fire, just west of the Rio Grande river. The middle image is a downward-looking or "nadir" view taken by MISR. As the satellite flew from north to south, the instrument viewed the scene from nine different angles. The top image was taken by the MISR camera looking 60 degrees forward along its orbit, whereas the bottom image looks 60 degrees aft. The fire plume stands out more dramatically in the steep-angle views. Its color and brightness also change with angle. By comparison, a thin, white water cloud appears in the upper right portion of the scene, and is most easily detected in the top image. MISR scientists use these angle-to-angle differences to monitor particulate pollution and to identify different types of haze. Such observations allow scientists to study how airborne particles interact with sunlight, a measure of their impact on Earth's climate system. The images are about 400 km (250 miles) wide. The spatial resolution of the nadir image is 275 meters (300 yards), resolution is 1.1 kilometers (1,200 yards) for the off-nadir images. North is toward the top. MISR is managed by the Jet Propulsion Laboratory, a division of the California Institute of Technology, for NASA' s Office of Earth Science, Washington, D.C. The Terra satellite is managed by NASA's Goddard Space Flight Center, Greenbelt, Md. ##### Photo credit: NASA/GSFC/JPL, MISR Science Team.
1998 Mars Polar Lander
The Mars Surveyor '98 Polar …
5/27/98
Date 5/27/98
Description The Mars Surveyor '98 Polar Lander is shown during recent deployment and testing of its surface solar panels. The spacecraft will travel 10 months from Earth to Mars to land near the southern polar cap in December 1999 and carry out a three- month mission to search for traces of subsurface water in this frozen, layered terrain. The lander carries three scientific packages: the Mars descent imager, furnished by Malin Space Science Systems, Inc., which will view the landing site at increasingly higher resolution, the atmospheric lidar experiment, provided by Russia's Space Research Institute, which will measure the presence and height of atmospheric hazes, along with a miniature microphone provided by The Planetary Society, to record the sounds of Mars, and the Mars Volatile and Climate Surveyor science package. The mission is part of NASA's Mars Surveyor program, a sustained program of robotic exploration of the red planet, managed by the Jet Propulsion Laboratory for NASA's Office of Space Science, Washington, DC. Lockheed Martin Astronautics is NASA's industrial partner in the mission. Photo copyright 1998, Lockheed Martin #####
1998 Mars Climate Orbiter
The Mars Surveyor '98 Climat …
5/27/98
Date 5/27/98
Description The Mars Surveyor '98 Climate Orbiter, which is entering the final stages of testing this summer at Lockheed Martin Astronautics, Denver, CO, is shown here during acoustic tests that simulate launch conditions. The orbiter will conduct a two- year primary mission to profile the Martian atmosphere and map the surface. To carry out these scientific objectives, the spacecraft will carry a rebuilt version of the pressure-modulated infrared radiometer, lost with the Mars Observer spacecraft, and a miniaturized dual camera system the size of a pair of binoculars, provided by Malin Space Science Systems, Inc., San Diego, CA. During its primary mission, the orbiter will monitor Mars' atmosphere and surface globally on a daily basis for one Martian year (two Earth years), observing the appearance and movement of atmospheric dust and water vapor, as well as characterizing seasonal changes of the planet's surface. Imaging of the surface morphology will also provide important clues about the planet's climate in its early history. The mission is part of NASA's Mars Surveyor program, a sustained program of robotic exploration of the red planet, managed by the Jet Propulsion Laboratory for NASA's Office of Space Science, Washington, DC. Lockheed Martin Astronautics is NASA's industrial partner in the mission. Photo copyright 1998, Lockheed Martin #####
A Digital Video Disk (DVD) b …
8/21/97
Date 8/21/97
Description A Digital Video Disk (DVD) bearing 616,400 digitized signatures of people from nations around the world has been attached to the Cassini spacecraft and will soon be on its way to Saturn. The disk cover, designed by Cassini science and engineering manager Charley Kohlhase, shows the flags from 28 of the 81 nations whose citizens sent signatures for the chance to send their names into space. The planet Saturn with its rings and its moon Titan and the Earth are also represented, as is the Cassini spacecraft and its Huygens probe. The feathers represent the Golden Eagle, whose feathers were used as quills for writing to spread wisdom. The bird is revered in mythology for carrying spirits above the Earth to the heavens. The flags, going clockwise from the American flag top center, are in order of the number of signatures collected, with the highest number from the United States. The disk is fitted into a shallow cavity between two pieces of aluminum that will protect it from micrometeoroid impacts. The package will be mounted to the side of the 2-story- tall spacecraft beneath a pallet carrying cameras and other science instruments that will be used to study the Saturnian system. A specially designed, multicolored patch of thermal blanket material will be installed over the disk package. Along with the spacecraft, the disk will reside in Saturn's orbit centuries after the primary mission is completed in July 2008. The Cassini mission is managed for NASA's Office of Space Science, Washington, D.C., by the Jet Propulsion Laboratory, a division of the California Institute of Technology. #####
MISR Views of Montana fires, …
These images show forest fir …
8/18/00
Date 8/18/00
Description These images show forest fires raging in Montana and Hurricane Hector swirling in the Pacific. These two unrelated, large-scale examples of nature's fury were captured by the Multi-angle Imaging SpectroRadiometer (MISR) during a single orbit of NASA's Terra satellite on August 14, 2000. In the left image, huge smoke plumes rise from devastating wildfires in the Bitterroot Mountain Range near the Montana-Idaho border. Flathead Lake is near the upper left, and the Great Salt Lake is at the bottom right. Smoke accumulating in the canyons and plains is also visible. This image was generated from the MISR camera that looks forward at a steep angle (60 degrees), the instrument has nine different cameras viewing Earth at different angles. The smoke is far more visible when seen at this highly oblique angle than it would be in a conventional, straight- downward (nadir) view. The wide extent of the smoke is evident from comparison with the image on the right, a view of Hurricane Hector acquired from MISR's nadir-viewing camera. Both images show an area of approximately 400 kilometers (250 miles) in width and about 850 kilometers (530 miles) in length. When this image of Hector was taken, the eastern Pacific tropical cyclone was located approximately 1,100 kilometers (680 miles) west of the southern tip of Baja California, Mexico. The eye is faintly visible and measures 25 kilometers (16 miles) in diameter. The storm was beginning to weaken, and 24 hours later the National Weather Service downgraded Hector from a hurricane to a tropical storm. MISR, built and managed by the Jet Propulsion Laboratory, is one of several Earth-observing instruments aboard Terra, which was launched in December 1999. More information about MISR is available at http://www-misr.jpl.nasa.gov . JPL is a division of the California Institute of Technology in Pasadena. # # # #
Dust clouds over eastern Chi …
The desert takes to the skie …
5/9/01
Date 5/9/01
Description The desert takes to the skies in these images of eastern China from NASA's Multi-angle Imaging SpectroRadiometer (MISR). A hazy summer view from July 9, 2000, (left) compares with a spectacularly dusty spring view from April 7, 2001, (middle). The two images cover an area from central Manchuria near the top to portions of North and South Korea at the bottom. The image on the right is a higher resolution MISR nadir- camera view of a portion of the April 7, 2001, dust cloud. When viewed at full magnification, a number of atmospheric wave features, like the ridges and valleys of a fingerprint, are apparent. These are probably induced by surface topography, which can disturb the wind flow. A few small cumulus clouds are also visible and are casting shadows on the thick lower dust layer. According to the Xinhua News Agency in China, nearly one million tons of Gobi Desert dust blow into Beijing each year. During a similar dust outbreak last year, the Associated Press reported that the visibility in Beijing had been reduced to the point where buildings were barely visible across city streets and airline schedules were significantly disrupted. The dust has also been implicated in adverse health effects such as respiratory discomfort and eye irritation. Asia's desert areas are prone to soil erosion, as underground water tables are lowered by prolonged drought and by industrial and agricultural water use. Heavy winds blowing eastward across the arid and sparsely vegetated surfaces of Mongolia and western China pick up large quantities of yellow dust. Airborne dust clouds from the April 2001 storm blew across the Pacific Ocean and were carried as far as North America. The minerals transported in this manner are believed to provide nutrients for both oceanic and land ecosystems. The left-hand and middle images are from Terra orbits 2,967 and 6,928 respectively. They are approximately 380 kilometers (236 miles) in width. The right-hand image covers an area roughly 250 kilometers (155 miles) wide by 470 kilometers (292 miles) high. Analyses of images such as these constitute one phase of MISR's participation in the Asian-Pacific Regional Aerosol Characterization Experiment, an international campaign aimed at studying the offshore transport of airborne particles from the Asian continent. More information about this international endeavor is available online at http://saga.pmel.noaa.gov/aceasia/ . MISR, built and managed by NASA's Jet Propulsion Laboratory, is one of several Earth-observing experiments aboard Terra, launched in December 1999. MISR acquires images of the Earth at nine angles simultaneously, using nine separate cameras pointed forward, downward, and backward along its flight path. More information about MISR is available at http://www-misr.jpl.nasa.gov . JPL is a division of the California Institute of Technology in Pasadena. Image credit: NASA/GSFC/LaRC/JPL, MISR Team. # # # # #
Mars Polar Lander
The Mars Polar Lander is sho …
Description The Mars Polar Lander is shown on the surface of Mars. The spacecraft will travel 10 months from Earth to Mars to land near the southern polar cap in December 1999 and carry out a three- month mission to search for traces of subsurface water in this frozen, layered terrain. The lander carries three scientific packages: the Mars descent imager, furnished by Malin Space Science Systems, Inc., which will view the landing site at increasingly higher resolution, the atmospheric lidar experiment, provided by Russia's Space Research Institute, which will measure the presence and height of atmospheric hazes, along with a miniature microphone provided by The Planetary Society, to record the sounds of Mars, and the Mars Volatile and Climate Surveyor science package. The mission is part of NASA's Mars Surveyor program, a sustained program of robotic exploration of the red planet, managed by the Jet Propulsion Laboratory for NASA's Office of Space Science, Washington, DC. Lockheed Martin Astronautics is NASA's industrial partner in the mission. #####
POLAR STRATOSPHERIC CLOUDS
Polar stratospheric clouds o …
4/5/00
Date 4/5/00
Description Polar stratospheric clouds over Kiruna, Sweden, on Jan. 27, 2000. The colorful appearance of these clouds is due to the small size of their droplets and their high altitude, approximately 21,300 meters (70,000 ft). The small droplets in the clouds result in separation of light of different colors due to refraction of sunlight. Their high altitude allows for full solar illumination for up to 20 minutes following sunset at the ground. These clouds, which have long been called "Mother of Pearl" by Scandinavians, participate in a chain of events that leads to ozone depletion by human-produced chlorine. Between November 1999 and March 2000, the SAGE III Ozone Loss and Validation Experiment (SOLVE) provided scientists with measurements of ozone using a variety of satellite-, airplane-, balloon- and ground-based instruments. Scientists also obtained a comprehensive inventory of numerous other atmospheric gases and information on the physical and chemical properties of polar stratospheric clouds. The SOLVE mission was co-sponsored by the Upper Atmosphere Research Program, Atmospheric Effects of Aviation Project, Atmospheric Chemistry Modeling and Analysis Program, and Earth Observing System of NASA's Earth Science Enterprise as part of the validation program for the SAGE III instrument. Based primarily in Kiruna, Sweden, the campaign included scientists from the United States, Europe, Canada, Russia and Japan. A key aspect to the success of this mission was the permission to fly both NASA research aircraft over Russia. SOLVE was managed by the Ames Research Center, Moffett Field, CA, with extensive participation by science teams from Goddard Space Flight Center, Greenbelt, MD, Langley Research Center, Hampton, VA, and the Jet Propulsion Laboratory, Pasadena, CA, as well as a number of other government laboratories and universities. The ER-2 and DC-8 aircraft are based at Dryden Flight Research Center, Edwards, CA, and the U.S. balloon operations in Sweden were conducted by a team from the National Scientific Balloon Facility, Palestine, TX.
HIGH ALTITUDE BALLOON/ARCTIC …
A NASA high-altitude researc …
4/5/00
Date 4/5/00
Description A NASA high-altitude research balloon climbing to study the composition of the Arctic stratosphere from the Esrange Balloon Launch Facility near Kiruna, Sweden. With its helium bubble expanding to the size of a large building while in the stratosphere, the balloon carried a payload of about 450 Kg. (1000 lbs) to an altitude of about 30,500 meters (100,000 ft.). Following flight, the instrument payload lands by parachute and is recovered for subsequent flights. Between November 1999 and March 2000, the SAGE III Ozone Loss and Validation Experiment (SOLVE) provided scientists with measurements of ozone using a variety of satellite-, airplane-, balloon- and ground-based instruments. Scientists also obtained a comprehensive inventory of numerous other atmospheric gases and information on the physical and chemical properties of polar stratospheric clouds. The SOLVE mission was co-sponsored by the Upper Atmosphere Research Program, Atmospheric Effects of Aviation Project, Atmospheric Chemistry Modeling and Analysis Program, and Earth Observing System of NASA's Earth Science Enterprise as part of the validation program for the SAGE III instrument. Based primarily in Kiruna, Sweden, the campaign included scientists from the United States, Europe, Canada, Russia and Japan. A key aspect to the success of this mission was the permission to fly both NASA research aircraft over Russia. SOLVE was managed by the Ames Research Center, Moffett Field, CA, with extensive participation by science teams from Goddard Space Flight Center, Greenbelt, MD, Langley Research Center, Hampton, VA, and the Jet Propulsion Laboratory, Pasadena, CA, as well as a number of other government laboratories and universities. The ER-2 and DC-8 aircraft are based at Dryden Flight Research Center, Edwards, CA, and the U.S. balloon operations in Sweden were conducted by a team from the National Scientific Balloon Facility, Palestine, TX.
OZONE INSTRUMENTS LOADED ON …
Scientists preparing their i …
4/5/00
Date 4/5/00
Description Scientists preparing their instruments for flight on the NASA ER-2 research aircraft inside the Arena Arctica hangar, Kiruna, Sweden. The plane carries dozens of instruments in two pods attached to the wings, in the Q-bay area below the cockpit and in the nose. These pieces of the plane can be detached allowing access to the instruments prior to take-off. Between November 1999 and March 2000, the SAGE III Ozone Loss and Validation Experiment (SOLVE) provided scientists with measurements of ozone using a variety of satellite-, airplane-, balloon- and ground-based instruments. Scientists also obtained a comprehensive inventory of numerous other atmospheric gases and information on the physical and chemical properties of polar stratospheric clouds. The SOLVE mission was co-sponsored by the Upper Atmosphere Research Program, Atmospheric Effects of Aviation Project, Atmospheric Chemistry Modeling and Analysis Program, and Earth Observing System of NASA's Earth Science Enterprise as part of the validation program for the SAGE III instrument. Based primarily in Kiruna, Sweden, the campaign included scientists from the United States, Europe, Canada, Russia and Japan. A key aspect to the success of this mission was the permission to fly both NASA research aircraft over Russia. SOLVE was managed by the Ames Research Center, Moffett Field, CA, with extensive participation by science teams from Goddard Space Flight Center, Greenbelt, MD, Langley Research Center, Hampton, VA, and the Jet Propulsion Laboratory, Pasadena, CA, as well as a number of other government laboratories and universities. The ER-2 and DC-8 aircraft are based at Dryden Flight Research Center, Edwards, CA, and the U.S. balloon operations in Sweden were conducted by a team from the National Scientific Balloon Facility, Palestine, TX.
ER-2 USED IN ARCTIC OZONE RE …
The NASA ER-2 high-altitude …
4/5/00
Date 4/5/00
Description The NASA ER-2 high-altitude research plane on the runway of Kiruna, Sweden. The airplane -- a civilian variant of the U-2 reconnaissance plane capable of reaching altitudes as high as 21,330 meters (70,000 feet) -- carried into the stratosphere dozens of scientific instruments that measure the composition of Earth's ozone layer. The only person on board is the pilot, who must wear a pressurized spacesuit to guard against the dangers of high-altitude flight. Between November 1999 and March 2000, the SAGE III Ozone Loss and Validation Experiment (SOLVE) provided scientists with measurements of ozone using a variety of satellite-, airplane-, balloon- and ground-based instruments. Scientists also obtained a comprehensive inventory of numerous other atmospheric gases and information on the physical and chemical properties of polar stratospheric clouds. The SOLVE mission was co-sponsored by the Upper Atmosphere Research Program, Atmospheric Effects of Aviation Project, Atmospheric Chemistry Modeling and Analysis Program, and Earth Observing System of NASA's Earth Science Enterprise as part of the validation program for the SAGE III instrument. Based primarily in Kiruna, Sweden, the campaign included scientists from the United States, Europe, Canada, Russia and Japan. A key aspect to the success of this mission was the permission to fly both NASA research aircraft over Russia. SOLVE was managed by the Ames Research Center, Moffett Field, CA, with extensive participation by science teams from Goddard Space Flight Center, Greenbelt, MD, Langley Research Center, Hampton, VA, and the Jet Propulsion Laboratory, Pasadena, CA, as well as a number of other government laboratories and universities. The ER-2 and DC-8 aircraft are based at Dryden Flight Research Center, Edwards, CA, and the U.S. balloon operations in Sweden were conducted by a team from the National Scientific Balloon Facility, Palestine, TX.
This picture of Venus was ca …
Description This picture of Venus was captured by the Mariner 10 spacecraft during its approach to the planet in early 1974. Taken with the spacecraft's imaging system using an ultraviolet filter, the picture has been color enhanced to simulate Venus's natural color as the human eye would see it. Although the planet closest to the Earth in size and distance from the Sun, Venus is perpetually blanketed by a thick veil of clouds high in carbon dioxide, its surface temperature approaches 900 degrees Fahrenheit. Launched on November 3, 1973 atop an Atlas Centaur rocket, Mariner 10 flew by Venus on February 5, 1974. It then went on to an encounter with Mercury, thus becoming the first spacecraft ever to fly by more than one planet. Mariner 10 was designed, built and managed by the Jet Propulsion Laboratory for NASA's Office of Space Science and Applications.
These two photographs of Com …
Description These two photographs of Comet Halley were obtained the night of Nov. 14, 1985, by JPL astronomer Eleanor Helin. Helin conducted her observations using the 0.46-meter (18-inch) Schmidt Telescope at Mount Palomar Observatory near San Diego. These two exposures were made at 12:37 a.m. and 1:33 a.m. PST for durations of 90 and 60 seconds, respectively. At the time, Halley was about 105 million kilometers (65 million miles) from Earth and traveling about 33 kilometers per second (74,000 mph) with respect to our planet. The comet was observed about 3 degrees south of the Pleiades star cluster. The apparent visual magnitude was 7.8. Here, Halley's embryonic tail is foreshortened as it trails behind the coma. The coma itself is beginning to warm up as the comet moves in closer to the Sun. The two pictures clearly show the comet's general westward movement (toward the left), as the bright star directly under the glowing comet in the top picture has moved somewhat to the right in relation to Halley in the lower image. The large bright star at far left is 37 Tau, and the second bright star, nearer to Halley, is 39 Tau, both stars are in the constellation Taurus. JPL is Western Hemisphere lead center for the International Halley Watch. #####
This artist's rendering show …
Description This artist's rendering shows the Magellan spacecraft in an elliptical orbit around Venus and illustrates the mapping and data transmission phases of the mission. During the mapping phase, the spacecraft turns its large antenna toward Venus. For 37 minutes, the Synthetic Aperture Radar (SAR) maps the 15 mile wide swath from the north pole to 66 degrees south latitude, acquiring imaging, altimetry and radiometry data. As the spacecraft reaches the high point of its orbit, the antenna is turned toward Earth and, for 115 minutes, the data is transmitted to Earth receiving stations. Magellan Mission Launched May 4, 1989, the Magellan spacecraft was designed to conduct the most comprehensive observation of the surface and gravitational features of Venus ever undertaken. During its 243 day (one Venus rotation) primary mission, the spacecraft will map up to 90 percent of the planet with high resolution imaging radar and will return more digital imaging data than all previous U.S. planetary missions combined. Lifted into Earth orbit by a shuttle, Magellan was sent on its 15 month journey to Venus by an Inertial Upper Stage (IUS) booster rocket. On arrival at Venus, a solid rocket motor will insert the spacecraft into an elliptical orbit and then will be jettisoned. For 37 minutes of each orbit, the imaging radar, called Synthetic Aperture Radar or SAR, will image a 15 mile wide swath of Venus' surface while also acquiring altimetry and radiometry data to determine the altitudes and temperatures of surface features. Then as the spacecraft moves toward the high point of its orbit, Magellan will turn its large antenna toward Earth and, for 115 minutes, transmit the radar data at 268 kilobits (1 kilobit equals 1,000 bits of data) per second to Earth receiving stations. Also during this period, gravity data will be acquired as small accelerations of the spacecraft are measured from Earth. ##### JPL 400·344C, Rev 1 12189 This artist's rendering shows the Magellan spacecraft in an elliptical orbit around Venus and illustrates the mapping and data-transmission phases of the mission. During the mapping phase, the spacecraft will turn its large antenna toward Venus. For 37 minutes, the Synthetic Aperture Radar (SAR) will map a 15-mile-wide swath from the north pole to 66 degrees south latitude, acquiring imaging, altimetry, and radiometry data. As the spacecraft reaches the high point of its orbit, the antenna will turn toward Earth and, for 115 minutes, the data will be transmitted to Earth receiving stations. Magellan Mission On arrival at Venus in August 1990, the Magellan spacecraft will begin the most comprehensive observation of the surface and gravitational features of Venus ever undertaken. During its 243-day (one Venus rotation) primary mission, the spacecraft will map up to 90 percent of the planet with high-resolution imaging radar and will return more digital imaging data than all previous U.S. planetary missions combined. For 37 minutes of each three-hour elliptical orbit, the imaging radar, called Synthetic Aperture Radar or SAR, will image a 15-mile-wide swath of Venus' surface while also acquiring altimetry and radiometry data to determine the altitudes and temperatures of surface features. Then, as the spacecraft moves toward the high point of its orbit, Magellan will turn its large antenna toward Earth and, for 115 minutes, will transmit the radar data at 268 kilobits (1 kilobit equals 1,000 bits of data) per second to Earth receiving stations. Also during this period, gravity data will be acquired as ground engineers measure slight changes in the spacecraft's orbital motion.
Dr. Edward C. Stone
Dr. Stone was appointed Dire …
Description Dr. Stone was appointed Director of the Jet Propulsion Laboratory on January 1, 1991. In this capacity he also serves as a Vice President of Caltech. Dr. Stone earned his associate of arts degree in 1956 from Burlington Junior College before continuing his studies at the University of Chicago. After receiving his master of science (1959) and Ph.D. (1964) degrees in physics, he joined Caltech as a research fellow in physics. Stone was subsequently appointed senior research fellow and assistant professor (1967), associate professor (1971), professor of physics (1976), chairman of Caltech's Division of Physics, Mathematics and Astronomy (1983 - 1988), and Vice President for Astronomical Facilities (1988 - 1990). Since his first cosmic-ray experiments on Discoverer satellites in 1961, Stone has been a principal investigator on nine NASA spacecraft missions and a co- investigator on five other NASA missions for which he developed high resolution instruments for measuring the isotopic and elemental composition of energetic cosmic-ray nuclei. Using these instruments, Stone and his colleagues undertook some of the first studies of the isotopic composition of three distinct samples of matter. The matter arrives at Earth as cosmic rays from nearby regions in our galaxy, as solar energetic particles from the Sun, and as the anomalous component from the local interstellar medium. These instruments also have been used for studies of planetary magnetospheres, including the discovery of energetic sulfur and oxygen ions from Jupiter's satellite, Io. Stone also jointly developed a large-area electronic satellite instrument for measuring the abundance of very rare heavy galactic cosmic-ray nuclei, such as lead and platinum, and collaborated in the development of an imaging gamma-ray telescope. Since 1972, Dr. Stone has served as the project scientist for the Voyager Mission, participating in both hardware development and mission operations. Following launch in 1977 of the twin Voyager spacecraft, he coordinated the efforts of 11 teams of scientists in their studies of Jupiter, Saturn, Uranus and Neptune. Among his many scientific awards and honors, Stone was a Sloan Foundation fellow and has received the NASA Exceptional Scientific Achievement Medal, the NASA Distinguished Service Medal, the American Institute of Aeronautics and Astronautics Dryden Medal and Space Science Award, and the NASA Distinguished Public Service Medal. He is the recipient of the NASA Outstanding Leadership Medal, the Aviation Week and Space Technology Aerospace Laurels Award, the National Space Club Science Award, the Association for Unmanned Vehicle Systems National Award for Operations, the National Medal of Science, the American Philosophical Society Magellanic Award, the American Academy of Achievement Golden Plate Award and the COSPAR Award for Outstanding Contribution to Space Science. He has received honorary degrees from Washington University, St. Louis, Harvard University, and the University of Chicago. Stone is a member of the National Academy of Sciences and the International Academy of Astronautics. He is a fellow of the American Physical Society, the American Geophysical Union, and the American Institute of Aeronautics and Astronautics. He is also a member of the American Astronomical Society, the International Astronomical Union and an honorary member of the Astronomical Society of the Pacific. #####
NSCAT/ADEOS
This artist's rendering show …
8/13/96
Date 8/13/96
Description This artist's rendering shows Japan's Advanced Earth Observing Satellite in low-Earth orbit carrying the NASA Scatterometer. NSCAT is the stick-like instrument in the foreground on the front of the satellite. At any given time NSCAT's array of six dual beam antennas -- each measuring 3 meters by 20 centimeters by 20 centimeters (10 feet by 6 inches by 6 inches) -- will scan two bands of ocean on either side of the satellite's near-polar sun- synchronous orbit. Information from NSCAT will help scientists predict climate changes and improve weather forecasts and will also help them understand ocean circulation and the role of air- sea interactions. The Japanese satellite and science instruments are scheduled for launch on August 16, 1996. The NSCAT instrument was built and will be managed by NASA's Jet Propulsion Laboratory.
Pine Island Glacier, West An …
This series of radar images …
7/24/98
Date 7/24/98
Description This series of radar images shows the Pine Island Glacier, a major ice stream of West Antarctica, that is considered to be vulnerable to climate change and a possible trigger for the disintegration of the West Antarctic Ice Sheet. Radar interferometry data collected between 1992 and 1996 show that the glacier is shrinking. During this time the glacier thinned by about 13 meters (42.9 feet). This is illustrated by the change in location of the black curvy line (called the hinge line), which is the area of transition between grounded ice (magenta) and floating ice (blue). The changing location of the hinge line (black curvy line) between 1992 and 1996 is shown on images B through F. Along the glacier center, the hinge line retreated 5 kilometers (3.1 miles) in 3.8 years. The recession is attributed to excess melting of the glacier's underside by warm ocean waters coming from the southern Pacific Ocean. Scientists theorize that the disintegration of the West Antarctic Ice Sheet would raise sea level by several meters (yards) causing major coastal flooding worldwide. Radar interferometry is a technique pioneered by JPL that combines two radar images of the same area taken from slightly different locations. When the image are taken a few days or years apart and compared to each other, subtle changes on the ground are revealed. Dark green indicates areas of no interferometry data. Color brightness is modulated by the radar brightness of the scene. The research was conducted at JPL using data collected by the European Space Agency's Earth Remote Sensing Satellites (ERS-1 and 2). This study was reported in the July 24, 1998, edition of the journal Science. More information about radar interferometry is available at the JPL Imaging Radar home page, http://southport.jpl.nasa.gov . #####
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