Browse All : LACE

Printer Friendly
1-31 of 31
     
     
Bands of Clouds and Lace
Description Here on the Gallery page you can find the very latest images, videos and products from the Cassini-Huygens mission to Saturn, including the spectacular launch, spacecraft assembly and the exciting trip to Saturn.
Full Description As Cassini nears its rendezvous with Saturn, new detail in the banded clouds of the planet's atmosphere are becoming visible. Cassini began the journey to the ringed world of Saturn nearly seven years ago and is now less than two months away from orbit insertion on June 30. Cassini¿s narrow-angle camera took this image on April 16, 2004, when the spacecraft was 38.5 million kilometers (23.9 million miles) from Saturn. Dark regions are generally areas free of high clouds, and bright areas are places with high, thick clouds which shield the view of the darker areas below. A dark spot is visible at the south pole, which is remarkable to scientists because it is so small and centered. The spot could be affected by Saturn's magnetic field, which is nearly aligned with the planet's rotation axis, unlike the magnetic fields of Jupiter and Earth. From south to north, other notable features are the two white spots just above the dark spot toward the right, and the large dark oblong-shaped feature that extends across the middle. The darker band beneath the oblong-shaped feature has begun to show a lacy pattern of lighter-colored, high altitude clouds, indicative of turbulent atmospheric conditions. The cloud bands move at different speeds, and their irregularities may be due to either the different motions between them or to disturbances below the visible cloud layer. Such disturbances might be powered by the planet's internal heat, Saturn radiates more energy than it receives from the Sun. The moon Mimas (396 kilometers, 245 miles across) is visible to the left of the south pole. Saturn currently has 31 known moons. Since launch, 13 new moons have been discovered by ground-based telescopes. Cassini will get a closer look and may discover new moons, perhaps embedded within the planet¿s magnificent rings. This image was taken using a filter sensitive to light near 727 nanometers, one of the near-infrared absorption bands of methane gas, which is one of the ingredients in Saturn's atmosphere. The image scale is approximately 231 kilometers (144 miles) per pixel. Contrast has been enhanced to aid visibility of features in the atmosphere. The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Cassini-Huygens mission for NASA's Office of Space Science, Washington, D.C. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging team is based at the Space Science Institute, Boulder, Colo. For more information about the Cassini-Huygens mission visit, http://saturn.jpl.nasa.gov and the Cassini imaging team home page, http://ciclops.org . Image Credit: NASA/JPL/Space Science Institute
The Apollo 17 Insignia
Name of Image The Apollo 17 Insignia
Date of Image 1972-01-01
Full Description This is the Apollo 17 insignia or logo. The seventh and last manned lunar landing and return to Earth mission, the Apollo 17, carried a crew of three astronauts: Harrison H. Schmitt, Lunar Module pilot, Eugene A. Cernan, mission commander, and Ronald E. Evans, Command Module pilot. Apollo 17 lifted off on December 7, 1972 from the Kennedy Space Flight Center (KSC). Scientific objectives of the mission included geological surveying and sampling of materials and surface features in a preselected area of the Taurus-Littrow region, deploying and activating surface experiments, and conducting in-flight experiments and photographic tasks during lunar orbit and transearth coast (TEC). The objectives included deployed experiments such as the Apollo lunar surface experiment package (ALSEP) with a Heat Flow experiment, Lunar seismic profiling (LSP), Lunar surface gravimeter (LSG), Lunar atmospheric composition experiment (LACE) and Lunar ejecta and meteorites (LEAM). The mission also included Lunar Sampling and Lunar Orbital experiments. Biomedical experiments included the Biostack II and the BIOCORE experiments. The mission marked the longest Apollo mission, 504 hours, and the longest lunar surface stay time, 75 hours, which allowed the astronauts to conduct an extensive geological investigation. They collected 257 pounds (117 kilograms) of lunar samples with the use of the Marshall Space Flight Center (MSFC) designed Lunar Roving Vehicle (LRV). The mission ended on December 19, 1972.
Lunar Roving Vehicle Parked …
Name of Image Lunar Roving Vehicle Parked Beside Boulder on Lunar Surface
Date of Image 1972-12-13
Full Description In this Apollo 17 onboard photo, a Lunar Roving Vehicle (LRV) is parked beside a huge boulder near the Valley of Tourus-Litttrow on the lunar surface. The seventh and last manned lunar landing and return to Earth mission, the Apollo 17, carrying a crew of three astronauts: Mission Commander Eugene A. Cernan, Lunar Module pilot Harrison H. Schmitt, and Command Module pilot Ronald E. Evans, lifted off on December 7, 1972 from the Kennedy Space Flight Center (KSC). Scientific objectives of the Apollo 17 mission included geological surveying and sampling of materials and surface features in a preselected area of the Taurus-Littrow region, deploying and activating surface experiments, and conducting in-flight experiments and photographic tasks during lunar orbit and transearth coast (TEC). These objectives included: Deployed experiments such as the Apollo lunar surface experiment package (ALSEP) with a Heat Flow experiment, Lunar seismic profiling (LSP), Lunar surface gravimeter (LSG), Lunar atmospheric composition experiment (LACE) and Lunar ejecta and meteorites (LEAM). The mission also included Lunar Sampling and Lunar orbital experiments. Biomedical experiments included the Biostack II Experiment and the BIOCORE experiment. The mission marked the longest Apollo mission, 504 hours, and the longest lunar surface stay time, 75 hours, which allowed the astronauts to conduct an extensive geological investigation. They collected 257 pounds (117 kilograms) of lunar samples with the use of the Marshall Space Flight Center developed LRV. The mission ended on December 19, 1972
Apollo 17 Astronaut Harrison …
Name of Image Apollo 17 Astronaut Harrison Schmitt Collects Lunar Rock Samples
Date of Image 1972-12-13
Full Description In this Apollo 17 onboard photo, Lunar Module pilot Harrison H. Schmitt collects rock samples from a huge boulder near the Valley of Tourus-Littrow on the lunar surface. The seventh and last manned lunar landing and return to Earth mission, the Apollo 17, carrying a crew of three astronauts: Schmitt, Mission Commander Eugene A. Cernan, and Command Module pilot Ronald E. Evans, lifted off on December 7, 1972 from the Kennedy Space Flight Center (KSC). Scientific objectives of the Apollo 17 mission included geological surveying and sampling of materials and surface features in a preselected area of the Taurus-Littrow region, deploying and activating surface experiments, and conducting in-flight experiments and photographic tasks during lunar orbit and transearth coast (TEC). These objectives included: Deployed experiments such as the Apollo lunar surface experiment package (ALSEP) with a Heat Flow experiment, Lunar seismic profiling (LSP), Lunar surface gravimeter (LSG), Lunar atmospheric composition experiment (LACE) and Lunar ejecta and meteorites (LEAM). The mission also included Lunar Sampling and Lunar orbital experiments. Biomedical experiments included the Biostack II Experiment and the BIOCORE experiment. The mission marked the longest Apollo mission, 504 hours, and the longest lunar surface stay time, 75 hours, which allowed the astronauts to conduct an extensive geological investigation. They collected 257 pounds (117 kilograms) of lunar samples with the use of the Marshall Space Flight Center designed Lunar Roving Vehicle (LRV). The mission ended on December 19, 1972
Apollo 17 Astronaut Cernan A …
Name of Image Apollo 17 Astronaut Cernan Adjusts U.S. Flag on Lunar Surface
Date of Image 1972-12-12
Full Description In this Apollo 17 onboard photo, Mission Commander Eugene A. Cernan adjusts the U.S. flag deployed upon the Moon. The seventh and last manned lunar landing and return to Earth mission, the Apollo 17, carrying a crew of three astronauts: Cernan, Lunar Module pilot Harrison H. Schmitt, and Command Module pilot Ronald E. Evans, lifted off on December 7, 1972 from the Kennedy Space Flight Center (KSC). Scientific objectives of the Apollo 17 mission included geological surveying and sampling of materials and surface features in a preselected area of the Taurus-Littrow region, deploying and activating surface experiments, and conducting in-flight experiments and photographic tasks during lunar orbit and transearth coast (TEC). These objectives included: Deployed experiments such as the Apollo lunar surface experiment package (ALSEP) with a Heat Flow experiment, Lunar seismic profiling (LSP), Lunar surface gravimeter (LSG), Lunar atmospheric composition experiment (LACE) and Lunar ejecta and meteorites (LEAM). The mission also included Lunar Sampling and Lunar orbital experiments. Biomedical experiments included the Biostack II Experiment and the BIOCORE experiment. The mission marked the longest Apollo mission, 504 hours, and the longest lunar surface stay time, 75 hours, which allowed the astronauts to conduct an extensive geological investigation. They collected 257 pounds (117 kilograms) of lunar samples with the use of the Marshall Space Flight Center developed LRV. The mission ended on December 19, 1972
Apollo 17 Astronaut Evans Re …
Name of Image Apollo 17 Astronaut Evans Retrieves Film Canister During Space Walk
Date of Image 1972-12-14
Full Description In this Apollo 17 onboard photo, Command Module pilot Ronald E. Evans retrieved the film canister of the mapping cameras on the day after Apollo 17 left lunar orbit. His space walk lasted an hour. The seventh and last manned lunar landing and return to Earth mission, the Apollo 17, carrying a crew of three astronauts: Evans, Mission Commander Eugene A. Cernan, and Lunar Module pilot Harrison H. Schmitt, lifted off on December 7, 1972 from the Kennedy Space Flight Center (KSC). Scientific objectives of the Apollo 17 mission included geological surveying and sampling of materials and surface features in a preselected area of the Taurus-Littrow region, deploying and activating surface experiments, and conducting in-flight experiments and photographic tasks during lunar orbit and transearth coast (TEC). These objectives included: Deployed experiments such as the Apollo lunar surface experiment package (ALSEP) with a Heat Flow experiment, Lunar seismic profiling (LSP), Lunar surface gravimeter (LSG), Lunar atmospheric composition experiment (LACE) and Lunar ejecta and meteorites (LEAM). The mission also included Lunar Sampling and Lunar orbital experiments. Biomedical experiments included the Biostack II Experiment and the BIOCORE experiment. The mission marked the longest Apollo mission, 504 hours, and the longest lunar surface stay time, 75 hours, which allowed the astronauts to conduct an extensive geological investigation. They collected 257 pounds (117 kilograms) of lunar samples with the use of the Marshall Space Flight Center designed Lunar Roving Vehicle (LRV). The mission ended on December 19, 1972
Apollo 17 Astronaut and Unit …
Name of Image Apollo 17 Astronaut and United States Flag on Lunar Surface
Date of Image 1972-12-12
Full Description This is an Apollo 17 Astronaut standing upon the lunar surface with the United States flag in the background. The seventh and last manned lunar landing and return to Earth mission, the Apollo 17, carrying a crew of three astronauts: Mission Commander Eugene A. Cernan, Lunar Module pilot Harrison H. Schmitt, and Command Module pilot Ronald E. Evans lifted off on December 7, 1972 from the Kennedy Space Flight Center (KSC). Scientific objectives of the Apollo 17 mission included geological surveying and sampling of materials and surface features in a preselected area of the Taurus-Littrow region, deploying and activating surface experiments, and conducting in-flight experiments and photographic tasks during lunar orbit and transearth coast (TEC). These objectives included: Deployed experiments such as the Apollo lunar surface experiment package (ALSEP) with a Heat Flow experiment, Lunar seismic profiling (LSP), Lunar surface gravimeter (LSG), Lunar atmospheric composition experiment (LACE) and Lunar ejecta and meteorites (LEAM). The mission also included Lunar Sampling and Lunar orbital experiments. Biomedical experiments included the Biostack II Experiment and the BIOCORE experiment. The mission marked the longest Apollo mission, 504 hours, and the longest lunar surface stay time, 75 hours, which allowed the astronauts to conduct an extensive geological investigation. They collected 257 pounds (117 kilograms) of lunar samples with the use of the Marshall Space Flight Center designed Lunar Roving Vehicle (LRV). The mission ended on December 19, 1972
Apollo 17 View of Lunar Surf …
Name of Image Apollo 17 View of Lunar Surface
Date of Image 1972-12-13
Full Description This view of the Lunar surface was taken during the Apollo 17 mission. The seventh and last manned lunar landing and return to Earth mission, the Apollo 17, carrying a crew of three astronauts: Mission Commander Eugene A. Cernan, Lunar Module pilot Harrison H. Schmitt, and Command Module pilot Ronald E. Evans, lifted off on December 7, 1972 from the Kennedy Space Flight Center (KSC). Scientific objectives of the Apollo 17 mission included geological surveying and sampling of materials and surface features in a preselected area of the Taurus-Littrow region, deploying and activating surface experiments, and conducting in-flight experiments and photographic tasks during lunar orbit and transearth coast (TEC). These objectives included: Deployed experiments such as the Apollo lunar surface experiment package (ALSEP) with a Heat Flow experiment, Lunar seismic profiling (LSP), Lunar surface gravimeter (LSG), Lunar atmospheric composition experiment (LACE) and Lunar ejecta and meteorites (LEAM). The mission also included Lunar Sampling and Lunar orbital experiments. Biomedical experiments included the Biostack II Experiment and the BIOCORE experiment. The mission marked the longest Apollo mission, 504 hours, and the longest lunar surface stay time, 75 hours, which allowed the astronauts to conduct an extensive geological investigation. They collected 257 pounds (117 kilograms) of lunar samples with the use of the Marshall Space Flight Center designed Lunar Roving Vehicle (LRV). The mission ended on December 19, 1972.
The Rosette Nebula in Hydrog …
Title The Rosette Nebula in Hydrogen, Oxygen, and Sulfur
Explanation The Rosette Nebula is a large emission nebula [ http://seds.lpl.arizona.edu/billa/twn/types.html#emission ] located 3000 light-years away. The great abundance of hydrogen gas [ http://casswww.ucsd.edu/public/tutorial/Planck.html#atoms ] gives NGC 2237 [ http://seds.lpl.arizona.edu/billa/twn/n2237x.html ] its red color in most photographs [ http://antwrp.gsfc.nasa.gov/apod/ap980214.html ]. The wind [ http://antwrp.gsfc.nasa.gov/apod/ap990208.html ] from the open cluster [ http://antwrp.gsfc.nasa.gov/apod/ap980329.html ] of stars known as NGC 2244 has cleared a hole in the nebula's center. The above photograph [ http://www.noao.edu/image_gallery/html/im0557.html ], however, was taken in the light emitted by three elements of the gas ionized by the energetic central stars. Here green light originating from oxygen [ http://pearl1.lanl.gov/periodic/elements/8.html ] and blue light originating from sulfur [ http://pearl1.lanl.gov/periodic/elements/16.html ] supplements the red from hydrogen. Filaments of dark dust [ http://galileo.mpi-hd.mpg.de/ ] lace run through the nebula's gases. The origin of recently observed fast-moving molecular knots [ http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1998A%26A...334..264C ] in the Rosette Nebula remains under investigation.
M20: The Trifid Nebula
Title M20: The Trifid Nebula
Explanation Unspeakable beauty and unimaginable bedlam can be found together in the Trifid Nebula [ http://www.seds.org/messier/m/m020.html ]. Also known as M20, this photogenic nebula [ http://www.noao.edu/image_gallery/html/im0587.html ] is visible with good binoculars towards the constellation [ http://www.astro.wisc.edu/~dolan/constellations/extra/constellations.html ] of Sagittarius [ http://www.astro.wisc.edu/~dolan/constellations/constellations/Sagittarius.html ]. The energetic processes of star formation [ http://antwrp.gsfc.nasa.gov/apod/ap990502.html ] create not only the colors but the chaos. The red-glowing gas [ http://antwrp.gsfc.nasa.gov/apod/ap980828.html ] results from high-energy starlight striking interstellar hydrogen [ http://pearl1.lanl.gov/periodic/elements/1.html ] gas. The dark dust [ http://antwrp.gsfc.nasa.gov/apod/ap990509.html ] filaments [ http://antwrp.gsfc.nasa.gov/apod/ap990607.html ] that lace M20 [ http://antwrp.gsfc.nasa.gov/apod/ap970828.html ] were created in the atmospheres of cool giant stars [ http://www.astro.keele.ac.uk/workx/starlife/StarpageS_26M.html ] and in the debris [ http://antwrp.gsfc.nasa.gov/apod/ap990803.html ] from supernovae [ http://imagine.gsfc.nasa.gov/docs/science/know_l1/supernovae.html ] explosions. Which bright young stars light up the blue reflection nebula [ http://antwrp.gsfc.nasa.gov/apod/reflection_nebulae.html ] is still being investigated [ http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1986AJ.....92.1125L ]. The light from M20 [ http://www.aao.gov.au/local/www/dfm/aat069.html ] we see today left perhaps 3000 years ago, although the exact distance remains unknown. Light takes about 50 years to cross M20 [ http://www.seds.org/billa/twn/n6514x.html ].
IC 4406: A Seemingly Square …
Title IC 4406: A Seemingly Square Nebula
Explanation How can a round star make a square nebula? This conundrum came to light with the discovery of planetary nebulae [ http://zebu.uoregon.edu/~imamura/208/feb22/feb22.html ] like IC 4406. IC 4406 [ http://www.astro.psu.edu/users/rbc/IC4406.html ] is most probably cylindrical, with its square appearance the result of our vantage point in viewing the cylinder. Hot gas is known [ http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1991A%26A...251..560S ] to be flowing out the ends of the cylinder, while filaments of dark dust [ http://antwrp.gsfc.nasa.gov/apod/ap990509.html ] and molecular gas [ http://antwrp.gsfc.nasa.gov/apod/ap970430.html ] lace the bounding walls. The star primarily responsible for this interstellar sculpture [ http://oposite.stsci.edu/pubinfo/pr/97/pn/ ] can be found in the planetary nebula's center. In a few million years, the only thing left visible in IC 4406 [ http://www.iras.ucalgary.ca/cgi-bin/zhang/webpn?IC4406 ] will be a fading white dwarf star [ http://antwrp.gsfc.nasa.gov/apod/ap971102.html ].
The Lagoon Nebula in Gas, Du …
Title The Lagoon Nebula in Gas, Dust, and Stars
Explanation Stars are battling gas and dust in the Lagoon Nebula but the photographers are winning. Also known as M8, this photogenic nebula [ http://astrosurf.com/afernandez/gallery/deepsky/m8/m8_lrgb_asa_70.htm ] is visible [ http://antwrp.gsfc.nasa.gov/apod/ap011229.html ] even without binoculars towards the constellation [ http://www.astro.wisc.edu/~dolan/constellations/extra/constellations.html ] of Sagittarius [ http://www.astro.wisc.edu/~dolan/constellations/constellations/Sagittarius.html ]. The energetic processes of star formation [ http://antwrp.gsfc.nasa.gov/apod/ap030816.html ] create not only the colors but the chaos [ http://antwrp.gsfc.nasa.gov/apod/ap031228.html ]. The red-glowing gas [ http://antwrp.gsfc.nasa.gov/apod/emission_nebulae.html ] results from high-energy starlight striking interstellar hydrogen [ http://en.wikipedia.org/wiki/Hydrogen ] gas. The dark dust [ http://antwrp.gsfc.nasa.gov/apod/ap030706.html ] filaments [ http://antwrp.gsfc.nasa.gov/apod/ap010928.html ] that lace M8 [ http://www.seds.org/messier/m/m008.html ] were created in the atmospheres of cool giant stars [ http://www.astro.keele.ac.uk/workx/starlife/StarpageS_26M.html ] and in the debris [ http://antwrp.gsfc.nasa.gov/apod/ap990803.html ] from supernovae [ http://imagine.gsfc.nasa.gov/docs/science/know_l1/supernovae.html ] explosions. The light from M8 [ http://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search?m8 ] we see today left about 5,000 years ago [ http://en.wikipedia.org/wiki/3rd_millennium_BC ]. Light takes about 50 years to cross this section of M8 [ http://www.seds.org/billa/twn/n6523.html ].
The Trifid Nebula in Stars a …
Title The Trifid Nebula in Stars and Dust
Explanation Unspeakable beauty and unimaginable bedlam can be found together in the Trifid Nebula [ http://www.seds.org/messier/m/m020.html ]. Also known as M20, this photogenic nebula [ http://www.cosmotography.com/images/lrg_m20.html ] is visible [ http://antwrp.gsfc.nasa.gov/apod/ap011229.html ] with good binoculars towards the constellation [ http://www.astro.wisc.edu/~dolan/constellations/extra/constellations.html ] of Sagittarius [ http://www.astro.wisc.edu/~dolan/constellations/constellations/Sagittarius.html ]. The energetic processes of star formation [ http://antwrp.gsfc.nasa.gov/apod/ap030816.html ] create not only the colors but the chaos [ http://en.wikipedia.org/wiki/Chaos_%28physics%29 ]. The red-glowing gas [ http://antwrp.gsfc.nasa.gov/apod/ap980828.html ] results from high-energy starlight striking interstellar hydrogen [ http://periodic.lanl.gov/elements/1.html ] gas. The dark dust [ http://antwrp.gsfc.nasa.gov/apod/ap030706.html ] filaments [ http://antwrp.gsfc.nasa.gov/apod/ap010928.html ] that lace M20 [ http://antwrp.gsfc.nasa.gov/apod/ap970828.html ] were created in the atmospheres of cool giant stars [ http://www.astro.keele.ac.uk/workx/starlife/StarpageS_26M.html ] and in the debris [ http://antwrp.gsfc.nasa.gov/apod/ap990803.html ] from supernovae [ http://imagine.gsfc.nasa.gov/docs/science/know_l1/supernovae.html ] explosions. Which bright young stars light up the blue reflection nebula [ http://antwrp.gsfc.nasa.gov/apod/reflection_nebulae.html ] is still being investigated [ http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1986AJ.....92.1125L ]. The light from M20 [ http://www.noao.edu/image_gallery/html/im0587.html ] we see today left perhaps 3000 years ago, although the exact distance remains unknown. Light takes about 50 years to cross M20 [ http://www.seds.org/billa/twn/n6514x.html ].
The Trifid Nebula from AAO
Title The Trifid Nebula from AAO
Explanation Unspeakable beauty and unimaginable bedlam can be found together in the Trifid Nebula [ http://www.seds.org/messier/m/m020.html ]. Also known as M20, this photogenic nebula [ http://www.aao.gov.au/images/captions/aat012.html ] is visible [ http://antwrp.gsfc.nasa.gov/apod/ap011229.html ] with good binoculars towards the constellation [ http://www.astro.wisc.edu/~dolan/constellations/extra/constellations.html ] of Sagittarius [ http://www.astro.wisc.edu/~dolan/constellations/constellations/Sagittarius.html ]. The energetic processes of star formation [ http://antwrp.gsfc.nasa.gov/apod/ap020108.html ] create not only the colors but the chaos [ http://antwrp.gsfc.nasa.gov/apod/ap011230.html ]. The red-glowing gas [ http://antwrp.gsfc.nasa.gov/apod/ap980828.html ] results from high-energy starlight striking interstellar hydrogen [ http://pearl1.lanl.gov/periodic/elements/1.html ] gas. The dark dust [ http://antwrp.gsfc.nasa.gov/apod/ap990509.html ] filaments [ http://antwrp.gsfc.nasa.gov/apod/ap010928.html ] that lace M20 [ http://antwrp.gsfc.nasa.gov/apod/ap970828.html ] were created in the atmospheres of cool giant stars [ http://www.astro.keele.ac.uk/workx/starlife/StarpageS_26M.html ] and in the debris [ http://antwrp.gsfc.nasa.gov/apod/ap990803.html ] from supernovae [ http://imagine.gsfc.nasa.gov/docs/science/know_l1/supernovae.html ] explosions. Which bright young stars light up the blue reflection nebula [ http://antwrp.gsfc.nasa.gov/apod/reflection_nebulae.html ] is still being investigated [ http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1986AJ.....92.1125L ]. The light from M20 [ http://www.noao.edu/image_gallery/html/im0587.html ] we see today left perhaps 3000 years ago, although the exact distance remains unknown. Light takes about 50 years to cross M20 [ http://www.seds.org/billa/twn/n6514x.html ].
IC 4406: A Seemingly Square …
Title IC 4406: A Seemingly Square Nebula
Explanation How can a round star make a square nebula? This conundrum comes to light when studying planetary nebulae [ http://zebu.uoregon.edu/~imamura/208/feb22/feb22.html ] like IC 4406. Evidence indicates that IC 4406 [ http://www.astro.psu.edu/users/rbc/IC4406.html ] is likely a hollow cylinder, with its square appearance the result of our vantage point in viewing the cylinder [ http://www.mathleague.com/help/geometry/3space.htm#cylinder ] from the side. Were IC 4406 [ http://heritage.stsci.edu/2002/14/table.html ] viewed from the top, it would likely look similar to the Ring Nebula [ http://antwrp.gsfc.nasa.gov/apod/ap010729.html ]. This representative-color picture [ http://heritage.stsci.edu/2002/14/index.html ] is a composite [ http://heritage.stsci.edu/2002/14/supplemental.html ] made by combining images taken by the Hubble Space Telescope [ http://antwrp.gsfc.nasa.gov/apod/ap010806.html ] last June and this January. Hot gas flows [ http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1991A%26A...251..560S ] out the ends of the cylinder, while filaments of dark dust [ http://antwrp.gsfc.nasa.gov/apod/ap990509.html ] and molecular gas [ http://antwrp.gsfc.nasa.gov/apod/ap970430.html ] lace the bounding walls. The star primarily responsible for this interstellar sculpture [ http://antwrp.gsfc.nasa.gov/apod/ap000416.html ] can be found in the planetary nebula [ http://www.noao.edu/jacoby/pn_gallery.html ]'s center. In a few million years, the only thing left visible in IC 4406 [ http://www.iras.ucalgary.ca/cgi-bin/zhang/webpn?IC4406 ] will be a fading white dwarf star [ http://antwrp.gsfc.nasa.gov/apod/ap000910.html ].
In the Center of the Omega N …
Title In the Center of the Omega Nebula
Explanation In the depths of the dark clouds [ http://antwrp.gsfc.nasa.gov/apod/ap030202.html.html ] of dust [ http://antwrp.gsfc.nasa.gov/apod/ap030706.html ] and molecular gas [ http://antwrp.gsfc.nasa.gov/apod/ap970430.html ] known as the Omega Nebula [ http://antwrp.gsfc.nasa.gov/apod/ap021210.html ], stars continue to form. The above image [ http://oposite.stsci.edu/pubinfo/PR/2002/11/pr-photos.html ] from the Hubble Space Telescope [ http://antwrp.gsfc.nasa.gov/apod/ap010806.html ]'s Advanced Camera for Surveys [ http://acs.pha.jhu.edu/ ] shows exquisite detail in the famous star-forming region [ http://antwrp.gsfc.nasa.gov/apod/ap000919.html ]. The dark dust filaments that lace the center of Omega Nebula [ http://www.seds.org/messier/m/m017.html ] were created in the atmospheres of cool giant stars [ http://www.historyoftheuniverse.com/starold.html ] and in the debris from supernova explosions [ http://chandra.harvard.edu/xray_sources/supernovas.html ]. The red and blue hues arise from glowing gas [ http://antwrp.gsfc.nasa.gov/apod/ap020213.html ] heated by the radiation of massive nearby stars. The points of light are the young stars [ http://antwrp.gsfc.nasa.gov/apod/ap031227.html ] themselves, some brighter than 100 Suns. Dark globules [ http://antwrp.gsfc.nasa.gov/apod/ap030816.html ] mark even younger systems [ http://www.ing.iac.es/PR/science/stars.html ], clouds of gas and dust just now condensing to form stars [ http://www.ph.surrey.ac.uk/astrophysics/files/how_stars_form.html#starbirth ] and planets [ http://collections.ic.gc.ca/universe/planets_answers08.html ]. The Omega Nebula [ http://www.astr.ua.edu/gifimages/m17r.html ] lies about 5000 light years [ http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html ] away toward the constellation [ http://www.astro.wisc.edu/~dolan/constellations/extra/constellations.html ] of Sagittarius [ http://www.astronomical.org/constellations/sgr.html ]. The region shown spans about 3000 times the diameter of our Solar System [ http://www.nineplanets.org/overview.html ].
NGC 4565: Galaxy on the Edge
Title NGC 4565: Galaxy on the Edge
Explanation Magnificent spiral galaxy NGC 4565 [ http://www.seds.org/messier/xtra/ngc/n4565.html ] is viewed edge-on [ http://antwrp.gsfc.nasa.gov/apod/ap010510.html ] from planet Earth. Also known as the Needle Galaxy [ http://antwrp.gsfc.nasa.gov/apod/ap990617.html ] for its narrow profile, bright NGC 4565 is a stop on many springtime telescopic tours of the northern sky as it lies in the faint but well-groomed constellation Coma Berenices [ http://www.dibonsmith.com/com_con.htm ]. This sharp color image [ http://www.noao.edu/outreach/aop/observers/n4565.html ] reveals the galaxy's bulging central core dominated by light from a population of older, yellowish stars. The core is dramatically cut by obscuring dust lanes which lace NGC 4565's thin galactic plane. A large island universe [ http://nedwww.ipac.caltech.edu/level5/March02/ Gordon/Gordon2.html ] similar to our own Milky Way Galaxy [ http://cassfos02.ucsd.edu/public/tutorial/MW.html ], NGC 4565 is only about 30 million light-years distant, but over 100,000 light-years in diameter. In fact, some consider NGC 4565 to be a prominent celestial masterpiece Messier missed [ http://www.seds.org/pub/info/newsletters/ WASP/wasp_mmm.html#8 ].
M20: The Trifid Nebula
Title M20: The Trifid Nebula
Explanation Unspeakable beauty and unimaginable bedlam can be found together in the Trifid Nebula [ http://www.seds.org/messier/m/m020.html ]. Also known as M20, this photogenic nebula [ http://www.aao.gov.au/local/www/dfm/aat069.html ] is visible with good binoculars in the constellation of Sagittarius [ http://galileo.gmu.edu/constellation/SGR.html ]. The energetic processes of star formation [ http://antwrp.gsfc.nasa.gov/apod/ap970119.html ] create not only the colors but the chaos. The red-glowing gas results from high-energy light striking interstellar hydrogen gas. The dark dust [ http://antwrp.gsfc.nasa.gov/apod/ap980104.html ] filaments that lace M20 [ http://antwrp.gsfc.nasa.gov/apod/ap951221.html ] were created [ http://www.pha.jhu.edu/~mseibert/paper/grain.html#dustc ] in the atmospheres of cool giant stars [ http://antwrp.gsfc.nasa.gov/apod/ap970216.html ] and in the debris from supernovae explosions [ http://antwrp.gsfc.nasa.gov/apod/ap970713.html ]. Which bright young star [ http://antwrp.gsfc.nasa.gov/apod/ap971018.html ] lights up the blue reflection nebula [ http://antwrp.gsfc.nasa.gov/apod/index/ReflectionNebulae.html ] is still being investigated. The light from M20 [ http://www.seds.org/billa/twn/n6514.html ] we see today left perhaps 3000 years ago. Light takes about 50 years to cross M20 [ http://antwrp.gsfc.nasa.gov/apod/ap970828.html ].
IC 4406: A Seemingly Square …
Title IC 4406: A Seemingly Square Nebula
Explanation How can a round star make a square nebula? This conundrum came to light with the discovery of planetary nebulae [ http://zebu.uoregon.edu/~imamura/208/feb22/feb22.html ] like IC 4406. IC 4406 [ http://www.astro.psu.edu/users/rbc/IC4406.html ] is most probably cylindrical, with its square appearance the result of our vantage point in viewing the cylinder. Hot gas is known [ http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1991A%26A%2E%2E%2E251%2E%2E560S&db_key=AST&high=33613e8e5801093&nosetcookie=1 ] to be flowing out the ends of the cylinder, while filaments of dark dust [ http://antwrp.gsfc.nasa.gov/apod/ap980104.html ] and molecular gas [ http://antwrp.gsfc.nasa.gov/apod/ap970430.html ] lace the bounding walls. The star primarily responsible [ http://www.astro.washington.edu/jalex/PNN_paper/GW_paper2.html ] for this interstellar sculpture can be found in the nebula's center. In a few million years, the only thing left visible in IC 4406 [ http://www.iras.ucalgary.ca/cgi-bin/zhang/webpn?IC4406 ] will be a fading white dwarf star [ http://antwrp.gsfc.nasa.gov/apod/ap971102.html ].
Close-Up of the Lagoon
Title Close-Up of the Lagoon
Explanation Stars are battling gas and dust in the Lagoon Nebula but the photographers are winning. Also known as M8, this photogenic nebula [ http://www.cfht.hawaii.edu/HawaiianStarlight/AIOM/English/CFHT-Coelum-AIOM-Jul2004.html ] is visible [ http://antwrp.gsfc.nasa.gov/apod/ap011229.html ] even without binoculars towards the constellation [ http://www.astro.wisc.edu/~dolan/constellations/extra/constellations.html ] of Sagittarius [ http://www.astro.wisc.edu/~dolan/constellations/constellations/Sagittarius.html ]. The energetic processes of star formation [ http://antwrp.gsfc.nasa.gov/apod/ap020108.html ] create not only the colors but the chaos [ http://antwrp.gsfc.nasa.gov/apod/ap031228.html ]. The red-glowing gas [ http://antwrp.gsfc.nasa.gov/apod/emission_nebulae.html ] results from high-energy starlight striking interstellar hydrogen [ http://pearl1.lanl.gov/periodic/elements/1.html ] gas. The dark dust [ http://antwrp.gsfc.nasa.gov/apod/ap030706.html ] filaments [ http://antwrp.gsfc.nasa.gov/apod/ap010928.html ] that lace M8 [ http://www.seds.org/messier/m/m008.html ] were created in the atmospheres of cool giant stars [ http://www.astro.keele.ac.uk/workx/starlife/StarpageS_26M.html ] and in the debris [ http://antwrp.gsfc.nasa.gov/apod/ap990803.html ] from supernovae [ http://imagine.gsfc.nasa.gov/docs/science/know_l1/supernovae.html ] explosions. This spectacular portion of the Lagoon Nebula [ http://antwrp.gsfc.nasa.gov/apod/ap021006.html ] taken by the CFHT [ http://www.cfht.hawaii.edu/ ] was created from light emitted by hydrogen (shown in red) and light emitted by oxygen [ http://pearl1.lanl.gov/periodic/elements/8.html ] (shown in green). The light from M8 [ http://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search?m8 ] we see today left about 5000 years ago. Light takes about 50 years to cross this section of M8 [ http://www.seds.org/billa/twn/n6523.html ].
The Trifid Nebula from CFHT
Title The Trifid Nebula from CFHT
Explanation Unspeakable beauty and unimaginable bedlam can be found together in the Trifid Nebula [ http://www.seds.org/messier/m/m020.html ]. Also known as M20, this photogenic nebula [ http://www.cfht.hawaii.edu/HawaiianStarlight/AIOM/English/CFHT-Coelum-AIOM-Mar2002.html ] is visible [ http://antwrp.gsfc.nasa.gov/apod/ap011229.html ] with good binoculars towards the constellation [ http://www.astro.wisc.edu/~dolan/constellations/extra/constellations.html ] of Sagittarius [ http://www.astro.wisc.edu/~dolan/constellations/constellations/Sagittarius.html ]. The energetic processes of star formation [ http://antwrp.gsfc.nasa.gov/apod/ap030816.html ] create not only the colors but the chaos [ http://www.mathjmendl.org/chaos/#intro ]. The red-glowing gas [ http://antwrp.gsfc.nasa.gov/apod/ap980828.html ] results from high-energy starlight striking interstellar hydrogen [ http://periodic.lanl.gov/elements/1.html ] gas. The dark dust [ http://antwrp.gsfc.nasa.gov/apod/ap030706.html ] filaments [ http://antwrp.gsfc.nasa.gov/apod/ap010928.html ] that lace M20 [ http://antwrp.gsfc.nasa.gov/apod/ap970828.html ] were created in the atmospheres of cool giant stars [ http://www.astro.keele.ac.uk/workx/starlife/StarpageS_26M.html ] and in the debris [ http://antwrp.gsfc.nasa.gov/apod/ap990803.html ] from supernovae [ http://imagine.gsfc.nasa.gov/docs/science/know_l1/supernovae.html ] explosions. Which bright young stars light up the blue reflection nebula [ http://antwrp.gsfc.nasa.gov/apod/reflection_nebulae.html ] is still being investigated [ http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1986AJ.....92.1125L ]. The light from M20 [ http://www.noao.edu/image_gallery/html/im0587.html ] we see today left perhaps 3000 years ago, although the exact distance remains unknown. Light takes about 50 years to cross M20 [ http://www.seds.org/billa/twn/n6514x.html ].
NGC 4565: Galaxy on the Edge
Title NGC 4565: Galaxy on the Edge
Explanation Magnificent spiral galaxy NGC 4565 [ http://www.seds.org/messier/xtra/ngc/n4565.html ] is viewed edge-on [ http://antwrp.gsfc.nasa.gov/apod/ap010510.html ] from planet Earth. Also known as the Needle Galaxy [ http://antwrp.gsfc.nasa.gov/apod/ap990617.html ] for its narrow profile, bright NGC 4565 is a stop on many telescopic tours of the northern sky as it lies in the faint but well-groomed constellation Coma Berenices [ http://www.dibonsmith.com/com_con.htm ]. This sharp color image [ http://www.robgendlerastropics.com/4565page.html ] reveals the galaxy's bulging central core dominated by light from a population of older, yellowish stars. The core is dramatically cut by obscuring dust lanes which lace NGC 4565's thin galactic plane [ http://antwrp.gsfc.nasa.gov/apod/ap020703.html ]. A large island universe [ http://nedwww.ipac.caltech.edu/level5/March02/ Gordon/Gordon2.html ] similar to our own Milky Way Galaxy [ http://cassfos02.ucsd.edu/public/tutorial/MW.html ], NGC 4565 is only about 30 million light-years [ http://chandra.harvard.edu/photo/cosmic_distance.html ] distant, but over 100,000 light-years in diameter. In fact, some consider NGC 4565 to be a prominent celestial masterpiece Messier missed [ http://www.seds.org/pub/info/newsletters/ WASP/wasp_mmm.html#8 ].
The Busy Center of the Lagoo …
Title The Busy Center of the Lagoon Nebula
Explanation Stars are battling gas and dust in the Lagoon Nebula but the photographers are winning. Also known as M8, this photogenic nebula [ http://www.turbinelegend.net/ASTRO/6303E/nbM8/nbM81/nbm81.html ] is visible [ http://antwrp.gsfc.nasa.gov/apod/ap011229.html ] even without binoculars towards the constellation [ http://www.astro.wisc.edu/~dolan/constellations/extra/constellations.html ] of Sagittarius [ http://www.astro.wisc.edu/~dolan/constellations/constellations/Sagittarius.html ]. The energetic processes of star formation [ http://antwrp.gsfc.nasa.gov/apod/ap030816.html ] create not only the colors but the chaos [ http://antwrp.gsfc.nasa.gov/apod/ap031228.html ]. The red-glowing gas [ http://antwrp.gsfc.nasa.gov/apod/emission_nebulae.html ] results from high-energy starlight striking interstellar hydrogen [ http://en.wikipedia.org/wiki/Hydrogen ] gas. The dark dust [ http://antwrp.gsfc.nasa.gov/apod/ap030706.html ] filaments [ http://antwrp.gsfc.nasa.gov/apod/ap010928.html ] that lace M8 [ http://www.seds.org/messier/m/m008.html ] were created in the atmospheres of cool giant stars [ http://www.astro.keele.ac.uk/workx/starlife/StarpageS_26M.html ] and in the debris [ http://antwrp.gsfc.nasa.gov/apod/ap990803.html ] from supernovae [ http://imagine.gsfc.nasa.gov/docs/science/know_l1/supernovae.html ] explosions. This spectacular portion of the Lagoon Nebula [ http://antwrp.gsfc.nasa.gov/apod/ap021006.html ] was created in scientifically-assigned colors from light emitted in very specific colors by hydrogen [ http://periodic.lanl.gov/elements/1.html ], silicon [ http://periodic.lanl.gov/elements/14.html ], and oxygen [ http://periodic.lanl.gov/elements/8.html ]. The light from M8 [ http://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search?m8 ] we see today left about 5000 years ago. Light takes about 50 years to cross this section of M8 [ http://www.seds.org/billa/twn/n6523.html ].
Carbon-Dioxide Frost Settlin …
title Carbon-Dioxide Frost Settling from Seasonal Outbursts on Mars (Movie)
Description Carbon-Dioxide Frost Settling from Seasonal Outbursts on Mars (Movie) This movie, constructed by overlaying a time series of images taken by the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM), shows seasonal changes and unearthly processes that occur in Mars' south polar seasonal frost cap. More >> [ http://mars.jpl.nasa.gov/mro/gallery/video/index.html#CarbonDioxideFrost ]
Cloud Formations off the Wes …
nasa, nasaimageofthedaygalle …
Off the west coast of South …
prettyclouds_tmo_30sep05
mediatype IMAGE
mediatype image
date 2005-09-30
creator NASA -- NASA image by Jesse Allen, Earth Observatory, using data obtained from the rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team at NASA GSFC.
identifier prettyclouds_tmo_30sep05
Swirls of Lace : Image of th …
nasa, nasaimageofthedaygalle …
These Multi-angle Imaging Sp …
misr_lace
mediatype IMAGE
mediatype image
date 2000-04-23
creator NASA -- Image courtesy NASA/GSFC/JPL, www-misr.jpl.nasa.gov/ MISR Team.
identifier misr_lace
Bands of Clouds and Lace
PIA05391
Sol (our sun)
Imaging Science Subsystem - …
Title Bands of Clouds and Lace
Original Caption Released with Image As Cassini nears its rendezvous with Saturn, new detail in the banded clouds of the planet's atmosphere are becoming visible. Cassini began the journey to the ringed world of Saturn nearly seven years ago and is now less than two months away from orbit insertion on June 30. Cassini?s narrow-angle camera took this image on April 16, 2004, when the spacecraft was 38.5 million kilometers (23.9 million miles) from Saturn. Dark regions are generally areas free of high clouds, and bright areas are places with high, thick clouds which shield the view of the darker areas below. A dark spot is visible at the south pole, which is remarkable to scientists because it is so small and centered. The spot could be affected by Saturn's magnetic field, which is nearly aligned with the planet's rotation axis, unlike the magnetic fields of Jupiter and Earth. From south to north, other notable features are the two white spots just above the dark spot toward the right, and the large dark oblong-shaped feature that extends across the middle. The darker band beneath the oblong-shaped feature has begun to show a lacy pattern of lighter-colored, high altitude clouds, indicative of turbulent atmospheric conditions. The cloud bands move at different speeds, and their irregularities may be due to either the different motions between them or to disturbances below the visible cloud layer. Such disturbances might be powered by the planet's internal heat, Saturn radiates more energy than it receives from the Sun. The moon Mimas (396 kilometers, 245 miles across) is visible to the left of the south pole. Saturn currently has 31 known moons. Since launch, 13 new moons have been discovered by ground-based telescopes. Cassini will get a closer look and may discover new moons, perhaps embedded within the planet?s magnificent rings. This image was taken using a filter sensitive to light near 727 nanometers, one of the near-infrared absorption bands of methane gas, which is one of the ingredients in Saturn's atmosphere. The image scale is approximately 231 kilometers (144 miles) per pixel. Contrast has been enhanced to aid visibility of features in the atmosphere. The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Cassini-Huygens mission for NASA's Office of Space Science, Washington, D.C. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging team is based at the Space Science Institute, Boulder, Colo. For more information, about the Cassini-Huygens mission visit, http://saturn.jpl.nasa.gov [ http://saturn.jpl.nasa.gov/ ] and the Cassini imaging team home page, http://ciclops.org [ http://ciclops.org/ ].
THEMIS Images as Art #4
PIA05368
Sol (our sun)
Thermal Emission Imaging Sys …
Title THEMIS Images as Art #4
Original Caption Released with Image Released 5 February 2004 Humanity is a very visual species. We rely on our eyes to tell us what is going on in the world around us. Put any image in front of a person and that person will examine the picture looking for anything familiar. Even if the examiner has no idea what he/she is looking at in a picture, he/she will still be able to make a statement about the picture, usually preceded by the words "it looks like..." The image above is part of the surface of Mars, but is presented for its artistic value rather than its scientific value. When first viewed, this image solicited a statement that "it looks like..." something seen in everyday life. Despite being named for the Roman god of war, Mars also can have a delicate side, as shown by this area that looks like lace. Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time. NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.
Swirls of Lace
PIA02648
Sol (our sun)
Multi-angle Imaging SpectroR …
Title Swirls of Lace
Original Caption Released with Image These MISR nadir-camera images from April 23, 2000 (Terra orbit 1855) and May 9, 2000 (Terra orbit 2088) show cloud swirls, like delicate lace, forming patterns known as von Karman vortex streets. The turbulent atmospheric eddies form in the wake of an obstacle, in this instance the 1050-meter-high summit on the island of Socorro, Mexico. The surrounding clouds make the vortex patterns visible. To the northeast, much subtler disturbances are associated with the tiny Isla San Benedicto. Both islands are part of a group known as the Revillagigedo Archipelago, and are located about 400 kilometers equatorward of the southern tip of Baja California. Each of these images is approximately 180 kilometers wide and 350 kilometers long. The von Karman vortices are named for aerodynamicist Theodore von Karman, one of the founders of the Jet Propulsion Laboratory. MISR was built and is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Office of Earth Science, Washington, DC. The Terra satellite is managed by NASA's Goddard Space Flight Center, Greenbelt, MD. JPL is a division of the California Institute of Technology.
General Description RTF Shuttle Mission Imagery
Apollo 17 Lunar Surface Expe …
Title Apollo 17 Lunar Surface Experiment: Lunar Atmosphere Composition Experiment
Description Table-top views of one of the Apollo 17 Lunar Surface Experiments. This view is of the Lunar Atmosphere Composition Experiment (LACE) (Lunar Mass Spectrometer), Experiment S-205, one of the experiments of the Apollo Lunar Surface Experiments Package which will be carried on the Apollo 17 lunar landing mission. The LACE will measrue components in the ambient lunar atmosphere in the range of one to 110 atomic mass units (AMU).
Date Taken 1972-11-30
1-31 of 31