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Mysterious Blob Galaxies Rev …
Title Mysterious Blob Galaxies Revealed
Description This image composite shows a giant galactic blob (red, left) and the three merging galaxies NASA's Spitzer Space Telescope discovered within it (yellow, right). Blobs are intensely glowing clouds of hot hydrogen gas that envelop faraway galaxies. They are about 10 times as large as the galaxies they surround. Visible-light images like the one shown here (left), reveal the vast extent of blobs, but don't provide much information about their host galaxies. Using its heat-seeking infrared eyes, Spitzer was able to see the dusty galaxies tucked inside one well-known blob located 11 billion light-years away. The findings reveal three monstrously bright galaxies, trillions of times brighter than the Sun, in the process of merging together (right). Spitzer also observed three other blobs located in the same cosmic neighborhood, all of which were found to be glaringly bright. One of these blobs is also known to be a galactic merger, only between two galaxies instead of three. It remains to be seen whether the final two blobs studied also contain mergers. The Spitzer data were acquired by its multiband imaging photometer. The visible-light image was taken by the Blanco Telescope at the Cerro Tololo Inter-American Observatory, Chile.
Mysterious Blob Galaxies Rev …
Title Mysterious Blob Galaxies Revealed
Description This image composite shows a giant galactic blob (red, left) and the three merging galaxies NASA's Spitzer Space Telescope discovered within it (yellow, right). Blobs are intensely glowing clouds of hot hydrogen gas that envelop faraway galaxies. They are about 10 times as large as the galaxies they surround. Visible-light images like the one shown here (left), reveal the vast extent of blobs, but don't provide much information about their host galaxies. Using its heat-seeking infrared eyes, Spitzer was able to see the dusty galaxies tucked inside one well-known blob located 11 billion light-years away. The findings reveal three monstrously bright galaxies, trillions of times brighter than the Sun, in the process of merging together (right). Spitzer also observed three other blobs located in the same cosmic neighborhood, all of which were found to be glaringly bright. One of these blobs is also known to be a galactic merger, only between two galaxies instead of three. It remains to be seen whether the final two blobs studied also contain mergers. The Spitzer data were acquired by its multiband imaging photometer. The visible-light image was taken by the Blanco Telescope at the Cerro Tololo Inter-American Observatory, Chile.
Mysterious Blob Galaxies Rev …
Title Mysterious Blob Galaxies Revealed
Description This image composite shows a giant galactic blob (red, left) and the three merging galaxies NASA's Spitzer Space Telescope discovered within it (yellow, right). Blobs are intensely glowing clouds of hot hydrogen gas that envelop faraway galaxies. They are about 10 times as large as the galaxies they surround. Visible-light images like the one shown here (left), reveal the vast extent of blobs, but don't provide much information about their host galaxies. Using its heat-seeking infrared eyes, Spitzer was able to see the dusty galaxies tucked inside one well-known blob located 11 billion light-years away. The findings reveal three monstrously bright galaxies, trillions of times brighter than the Sun, in the process of merging together (right). Spitzer also observed three other blobs located in the same cosmic neighborhood, all of which were found to be glaringly bright. One of these blobs is also known to be a galactic merger, only between two galaxies instead of three. It remains to be seen whether the final two blobs studied also contain mergers. The Spitzer data were acquired by its multiband imaging photometer. The visible-light image was taken by the Blanco Telescope at the Cerro Tololo Inter-American Observatory, Chile.
Hubble Observations Confirm …
Title Hubble Observations Confirm that Planets Form from Disks Around Stars
Hubble Observations Confirm …
Title Hubble Observations Confirm that Planets Form from Disks Around Stars
Hubble Finds Mysterious Disk …
Title Hubble Finds Mysterious Disk of Blue Stars Around Black Hole
Hubble Finds Mysterious Disk …
Title Hubble Finds Mysterious Disk of Blue Stars Around Black Hole
Hubble Finds Mysterious Disk …
Title Hubble Finds Mysterious Disk of Blue Stars Around Black Hole
Hubble Finds Mysterious Disk …
Title Hubble Finds Mysterious Disk of Blue Stars Around Black Hole
Hubble Finds Mysterious Disk …
Title Hubble Finds Mysterious Disk of Blue Stars Around Black Hole
Hubble Finds Mysterious Disk …
Title Hubble Finds Mysterious Disk of Blue Stars Around Black Hole
Hubble Finds Mysterious Disk …
Title Hubble Finds Mysterious Disk of Blue Stars Around Black Hole
Hubble Finds Mysterious Disk …
Title Hubble Finds Mysterious Disk of Blue Stars Around Black Hole
Hubble Finds Mysterious Disk …
Title Hubble Finds Mysterious Disk of Blue Stars Around Black Hole
Urban Modifications of Rainf …
Title Urban Modifications of Rainfall, Texas
Abstract Using the world's first space-based rain radar aboard NASA's Tropical Rainfall Measuring Mission (TRMM) satellite, NASA scientists found that mean monthly rainfall rates within 30-60 kilometers (18 to 36 miles) downwind of some cities were, on average, about 28 percent greater than the upwind region. In some cities, the downwind area exhibited increases as high as 51 percent.
Completed 2002-06-14
Urban Modifications of Rainf …
Title Urban Modifications of Rainfall, Texas
Abstract Using the world's first space-based rain radar aboard NASA's Tropical Rainfall Measuring Mission (TRMM) satellite, NASA scientists found that mean monthly rainfall rates within 30-60 kilometers (18 to 36 miles) downwind of some cities were, on average, about 28 percent greater than the upwind region. In some cities, the downwind area exhibited increases as high as 51 percent.
Completed 2002-06-14
Zoom into Austin, Texas, usi …
Title Zoom into Austin, Texas, using Landsat Imagery (WMS)
Abstract The WMS Global Mosaic dataset was developed at NASA's Jet Propulsion Laboratory (JPL). This global mosaic was produced from visual and near infrared bands taken by the Landsat-7 satellite. Using the panchromatic band to sharpen the final image, a final resolution of 0.5 arc seconds (about 15 meters) can be achieved. This mosaic is available through the Web Mapping Services (WMS) protocol at JPL. This series of images was obtained using a software program called the Digital Earth PC which can use the WMS protocol to obtain images covering an arbitrary region of the earth. These images can be arranged in such a way with the Digital Earth PC software that a nearly continuous zoom effect can be achieved.
Completed 2004-10-21
Zoom into Austin, Texas, usi …
Title Zoom into Austin, Texas, using Landsat Imagery (WMS)
Abstract The WMS Global Mosaic dataset was developed at NASA's Jet Propulsion Laboratory (JPL). This global mosaic was produced from visual and near infrared bands taken by the Landsat-7 satellite. Using the panchromatic band to sharpen the final image, a final resolution of 0.5 arc seconds (about 15 meters) can be achieved. This mosaic is available through the Web Mapping Services (WMS) protocol at JPL. This series of images was obtained using a software program called the Digital Earth PC which can use the WMS protocol to obtain images covering an arbitrary region of the earth. These images can be arranged in such a way with the Digital Earth PC software that a nearly continuous zoom effect can be achieved.
Completed 2004-10-21
Zoom into Austin, Texas, usi …
Title Zoom into Austin, Texas, using Landsat Imagery (WMS)
Abstract The WMS Global Mosaic dataset was developed at NASA's Jet Propulsion Laboratory (JPL). This global mosaic was produced from visual and near infrared bands taken by the Landsat-7 satellite. Using the panchromatic band to sharpen the final image, a final resolution of 0.5 arc seconds (about 15 meters) can be achieved. This mosaic is available through the Web Mapping Services (WMS) protocol at JPL. This series of images was obtained using a software program called the Digital Earth PC which can use the WMS protocol to obtain images covering an arbitrary region of the earth. These images can be arranged in such a way with the Digital Earth PC software that a nearly continuous zoom effect can be achieved.
Completed 2004-10-21
Zoom into Austin, Texas, usi …
Title Zoom into Austin, Texas, using Landsat Imagery (WMS)
Abstract The WMS Global Mosaic dataset was developed at NASA's Jet Propulsion Laboratory (JPL). This global mosaic was produced from visual and near infrared bands taken by the Landsat-7 satellite. Using the panchromatic band to sharpen the final image, a final resolution of 0.5 arc seconds (about 15 meters) can be achieved. This mosaic is available through the Web Mapping Services (WMS) protocol at JPL. This series of images was obtained using a software program called the Digital Earth PC which can use the WMS protocol to obtain images covering an arbitrary region of the earth. These images can be arranged in such a way with the Digital Earth PC software that a nearly continuous zoom effect can be achieved.
Completed 2004-10-21
Zoom into Austin, Texas, usi …
Title Zoom into Austin, Texas, using Landsat Imagery (WMS)
Abstract The WMS Global Mosaic dataset was developed at NASA's Jet Propulsion Laboratory (JPL). This global mosaic was produced from visual and near infrared bands taken by the Landsat-7 satellite. Using the panchromatic band to sharpen the final image, a final resolution of 0.5 arc seconds (about 15 meters) can be achieved. This mosaic is available through the Web Mapping Services (WMS) protocol at JPL. This series of images was obtained using a software program called the Digital Earth PC which can use the WMS protocol to obtain images covering an arbitrary region of the earth. These images can be arranged in such a way with the Digital Earth PC software that a nearly continuous zoom effect can be achieved.
Completed 2004-10-21
Zoom into Austin, Texas, usi …
Title Zoom into Austin, Texas, using Landsat Imagery (WMS)
Abstract The WMS Global Mosaic dataset was developed at NASA's Jet Propulsion Laboratory (JPL). This global mosaic was produced from visual and near infrared bands taken by the Landsat-7 satellite. Using the panchromatic band to sharpen the final image, a final resolution of 0.5 arc seconds (about 15 meters) can be achieved. This mosaic is available through the Web Mapping Services (WMS) protocol at JPL. This series of images was obtained using a software program called the Digital Earth PC which can use the WMS protocol to obtain images covering an arbitrary region of the earth. These images can be arranged in such a way with the Digital Earth PC software that a nearly continuous zoom effect can be achieved.
Completed 2004-10-21
Floods in Texas and Oklahoma
Title Floods in Texas and Oklahoma
Description June 2007 was exceptionally wet for the Southern Plains of the United States because a stagnant weather pattern focused moisture and storms over Texas and Oklahoma. The latest round of heavy storms dumped up to 460 millimeters (18 inches) of rain in parts of central Texas on the night of Tuesday, June 26, said news reports. For Austin, the state's capital, more than 30 inches of rain has fallen since January, making 2007 the wettest year on record so far according to local news reports. This image shows rainfall totals from the near-real-time, Multi-satellite Precipitation Analysis (MPA), which is based on rainfall data collected by the Tropical Rainfall Measuring Mission TRMM [ http://trmm.gsfc.nasa.gov/ ]) satellite. The totals shown here indicate how much rain fell between June 20 and June 28, 2007. Splotches of red over central Texas and southern Oklahoma indicate where the MPA tallied up to 200 millimeters (8 inches) of rain. A broad area of at least 50 mm (about 2 inches) of rainfall covers almost all of Texas and Oklahoma. These totals fall short of totals reported on the ground because the satellites used in the MPA can't see areas of localized heavy rain. These satellites "zoom in" to approximately 30 kilometers (20 miles), and so miss smaller areas of intense rain. TRMM is a joint mission between NASA and the Japanese space agency, JAXA. Image produced by Hal Pierce (SSAI/NASA GSFC) and caption by and Steve Lang (SSAI/NASA GSFC).
SN 2005ap: The Brightest Sup …
Title SN 2005ap: The Brightest Supernova Yet Found
Explanation What could cause a bang this big? This supernova explosion [ http://heasarc.gsfc.nasa.gov/docs/snr.html ] was so inherently bright that it could be seen nearly 5 billion light years [ http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html ] away (a redshift [ http://astsun.astro.virginia.edu/~jh8h/glossary/redshift.htm ] of 0.28) even with a small telescope. Specific colors emitted during SN 2005ap [ http://adsabs.harvard.edu/abs/2007arXiv0709.0302Q ] indicate that it was a Type II supernova [ http://en.wikipedia.org/wiki/Type_II_supernova ], a breed of stellar explosion that results when a high mass star begins fusing [ http://en.wikipedia.org/wiki/Nuclear_fusion ] heavy elements in or near its core. Type II supernovas [ http://cse.ssl.berkeley.edu/bmendez/ay10/2000/cycle/snII.html ] may be more powerful than their Type Ia cousins [ http://en.wikipedia.org/wiki/Type_Ia_supernova ], but they are not currently more useful cosmologically because astronomers [ http://www.ehow.com/how_14282_become-astronomer.html ] don't understand how to accurately recover their intrinsic brightnesses [ http://astsun.astro.virginia.edu/~teacha/130_manual/node30.html ]. It is therefore dimmer Type Ia supernova [ http://www.youtube.com/watch?v=RgfbjHz_UTo ]s that are used by astronomers to calibrate the distance scale [ http://www.atlasoftheuniverse.com/redshift.html ] of the nearby universe. Were Type II supernova [ http://en.wikipedia.org/wiki/Supernova ] better understood, astronomers might be able to probe distances [ http://antwrp.gsfc.nasa.gov/apod/ap061224.html ] further into the universe, and so probe the stability of the strange dark energy [ http://en.wikipedia.org/wiki/Dark_energy ] that dominates the present universe. Pictured above [ http://mcdonaldobservatory.org/news/releases/2007/1010.html ] in a digitally compressed image, the bright supernova SN 2005ap is visible on the right where no exploding star had been seen on the left less than three months before.
Jupiter, Moons and Bees
Title Jupiter, Moons and Bees
Explanation Rising before the Sun on September 4, Jupiter and an old cresent Moon [ http://antwrp.gsfc.nasa.gov/apod/ap020419.html ] gathered in the dim constellation of Cancer [ http://www.coldwater.k12.mi.us/lms/planetarium/myth/ cancer.html ]. Watching from a hillside near Austin, Texas, planet Earth [ http://earthobservatory.nasa.gov/ ], astrophotographer Russell Croman recorded this view [ http://www.rc-astro.com/solar_system/moon/moonbees.html ] of their passing as clouds gracefully dimmed the brilliant moonlight. Earthshine illuminates [ http://www.amnh.org/exhibitions/codex/2A2r.html ] the lunar night side and on close inspection, bright Jupiter at the lower right appears tightly flanked [ http://antwrp.gsfc.nasa.gov/apod/ap980513.html ] by its own four large Galilean moons [ http://www.jpl.nasa.gov/galileo/ganymede/ discovery.html ]. Next to Jupiter lies a loose swarm of stars just below the clouds. The stars are the brighter members of the nearby star cluster M44, popularly known as the Beehive cluster [ http://antwrp.gsfc.nasa.gov/apod/ap980803.html ]. Croman's remarkable digital image has been processed only slightly to improve the visibility of the earthshine region and Jupiter's moons [ http://antwrp.gsfc.nasa.gov/apod/ap001118.html ].
Floods in Texas and Oklahoma …
nasa, nasanaturalhazards
June 2007 was exceptionally …
Texas_TRM_2007179
mediatype IMAGE
mediatype image
date 2007-06-28
creator NASA -- NASA Image Of The Day
identifier Texas_TRM_2007179
1-26 of 26