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Topic: Gusev (Mars crater)

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	Gusev Crater location on Mars
		Gusev Crater is an impact crater on Mars that looks as though a lake may have once filled it in the distant past.
		Gusev Crater is about 145 km (90 miles) wide and covers an area roughly the size of the state of Connecticut.
		Scientists believe the Gusev Crater was formed by the impact of an asteroid three to four billion years ago.
	www.windows.ucar.edu /mars/places/gusev_crater.backup_MetaRefresh (1159 words)

	PSR Discoveries: Hot Idea: Gusev crater on Mars
		Younger, smaller impact craters on the southern and northern rims of Gusev opened the pathway for water from Ma'adim Vallis.
		Smooth and bright surface at the junction of Ma'adim Vallis and the southern rim of Gusev crater, interpreted to be windblown material.
		Gusev crater is intriguing because of its long history as a depositional site for water and sediments from Ma'adim Vallis.
	www.psrd.hawaii.edu /Sept98/GusevMars.html (1117 words)

	Gusev Crater Part I
		Gusev crater is an ancient, or as we say Noachian dated impact crater of 150 km diameter located in the Aeolis region of Mars.
		The rough cratered highlands extend far towards the south and are the oldest terrain surviving on Mars.
		The floor of Gusev crater appears generally smooth at the limited resolution of the Viking Orbiter cameras, with the exception of its eastern region where ancient ejecta from a later, smaller impact ("Crater-Lake") within Gusev have been partially covered by sediments.
	cmex.ihmc.us /CMEX/data/SiteCat/sitecat2/gusev1.htm (831 words)

	Gusev Crater
		A 144-km-wide (90-mile) crater, located just south of the equator of Mars, that is the landing site for Spirit, one of the Mars Exploration Rovers.
		Gusev Crater appears to have been formed by the impact of an asteroid some three to four billion years ago.
		Inside the crater, researchers expect to find sediments, which may be nearly 3,000 feet thick, that have subsequently been overlaid by dust and sand.
	www.daviddarling.info /encyclopedia/G/Gusev_Crater.html (475 words)

	JPL News -- Volcanic Rock in Mars' Gusev Crater Hints at Past Water
		NASA's Spirit has found hints of a water history in a rock at Mars' Gusev Crater, but it is a very different type of rock than those in which NASA's Opportunity found clues to a wet past on the opposite side of the planet.
		Spirit is headed toward a crater nicknamed "Bonneville," about 150 meters (500 feet) in diameter, where scientists hope to see rocks from beneath the region's surface volcanic layer.
		JPL, a division of the California Institute of Technology in Pasadena, manages the Mars Exploration Rover project for NASA's Office of Space Science, Washington, D.C. Images and additional information about the project are available from JPL at http://marsrovers.jpl.nasa.gov and from Cornell University at http://athena.cornell.edu.
	www.jpl.nasa.gov /releases/2004/79.cfm (844 words)

	Mars Odyssey Mission THEMIS: Feature Image: Gusev Crater
		The crater was formed by the impact of an asteroid some 3.5 to 4 billion years ago.
		Numerous almost-buried craters observed on Gusev's floor lend support to the idea that the Columbia Hills are the remains of an ancient impact crater rim, or possibly a central peak.
		The hills partly parallel the rim of Thira crater, 9 miles (15 km) to the northeast.
	themis.asu.edu /feature_gusev (481 words)

	Mars Global Surveyor MOC2-58 Gusev Crater Release
		Ma'adim Vallis is the canyon that enters Gusev Crater at the lower center of the frame.
		Located in the martian southern cratered highlands at 14.7° S, 184.5° W, Gusev Crater is a large, ancient, meteor impact basin that--after it formed--was breached by Ma'adim Vallis.
		The possibility that water flowed into Gusev Crater and formed a lake has led to the suggestion that the materials seen on the floor of this crater--smooth-surfaced deposits, buried craters, and huge mesas near the mouth of Ma'adim Vallis--are composed of sediment that eroded out of the highlands to the south of Gusev Crater.
	mars.jpl.nasa.gov /mgs/msss/camera/images/7_17_98_gusev_rel (1004 words)

	Mars TV \| Mars Exploration Rovers - Mars Express - Beagle 2 - Mars Reconnaissance Orbiter \| SpaceRef - Space News As It ...
		Perched Above Gusev Crater - This approximate true-color image taken by the Mars Exploration Rover Spirit shows a rock outcrop dubbed "Longhorn," and behind it, the sweeping plains of Gusev Crater.
		On the horizon, the rim of Gusev Crater is clearly visible.
		The picture is a mosaic of frames taken by the panoramic camera on NASA's Mars Exploration Rover Opportunity during the rover's 88th martian day on Mars, on April 23, 2004.
	www.mars.tv (1106 words)

	Mars Exploration Rover Mission: Press Release Images: Spirit
		In the mid-afternoons as the summer solstice approached, dust devils were a very common occurrence on the floor of Gusev crater.
		The dust-carrying whirlwind is moving across a plain inside Gusev Crater and viewed from Spirit's vantage point on hills rising from the plain.
		This movie clip shows several dust devils moving from right to left across a plain inside Mars' Gusev Crater, as seen from the vantage point of NASA's Mars Exploration Rover Spirit in hills rising from the plain.
	origin.mars5.jpl.nasa.gov /gallery/press/spirit/20050819a.html (1209 words)

	Wind-related features in Gusev crater, Mars
		Gusev crater has a complex history beginning with its formation by an impact in the Noachian Period and subsequent evolution, including erosion and deposition associated with Ma'adim Vallis, which cut through Gusev crater from the south.
		On an intermediate-scale, bright wind streaks correlate with nighttime winds that flow into the crater from the rim and outlying high areas; these streaks are interpreted to be deposits of dust settled from the atmosphere during times of positive atmospheric static stability.
		Because Gusev is a prime candidate landing site for landers, including the Mars Exploration Rovers, understanding the interplay of the atmosphere and the surface (including the erosion and deposition of windblown particles) is important in assessments of the science potential for these missions.
	www.agu.org /pubs/crossref/2003/2002JE002006.shtml (533 words)

	Mars Exploration Rover Mission: Panoramas: Spirit
		The mosaic was acquired by the panoramic camera on NASA's Mars Exploration Rover Spirit on sols 594, 595, and 597 (Sept. 4, 5, and 7, 2005).
		The image is an approximately true-color rendering using the 750-nanometer, 530-nanometer and 480-nanometer filters for the surface, and the 600-nanometer and 480-nanometer filters for the rover deck.
		Beyond the hills are the flat plains and rim of Gusev Crater.
	origin.mars5.jpl.nasa.gov /gallery/panoramas/spirit/2005.html (7098 words)

	Destination: Gusev Crater
		On January 3, 2004, NASA's Mars rover Spirit is scheduled to land in a strange crater that might be an ancient martian lake bed.
		The site is Gusev Crater, a 90-mile wide hole in the ground that probably formed three to four billion years ago when an asteroid crashed just south of Mars’ equator.
		For example, if indeed Gusev once held a giant lake (more than 10 times the size of the famous Crater Lake here in the US) certain key minerals are likely to be found in its rocks.
	science.nasa.gov /headlines/y2003/30dec_gusevcrater.htm (894 words)

	NASA - Destination: Gusev Crater
		The site is Gusev Crater, a 90-mile wide hole in the ground that probably formed three to four billion years ago when an asteroid crashed just south of Mars' equator.
		For example, if indeed Gusev once held a giant lake (more than 10 times the size of the famous Crater Lake here in the US) certain key minerals are likely to be found in its rocks.
		Carbonated Mars -- (Science@NASA) Here on Earth the only way to make carbonate rocks is with the aid of liquid water.
	www.nasa.gov /vision/universe/solarsystem/30dec_gusevcrater.html (837 words)

	Gusev crater - Wikipedia, the free encyclopedia
		Gusev Crater is a crater on the planet Mars and is located at 175.4°E 14.6°S. The crater is about 170 kilometers in diameter and formed approximately three to four billion years ago.
		The crater appears to be an old crater lake bed, filled with sediments up to 3000 feet thick.
		It is hoped that the numerous smaller and more recent craters in this region will have exposed sedimentary material from early eras, although at first the region proved disappointing in its lack of available bedrock for study on the flat lava plains of the crate, Spirit's landing site.
	en.wikipedia.org /wiki/Gusev_Crater (574 words)

	Mars Odyssey: Multimedia
		This mosaic of daytime infrared images of Gusev Crater, taken by the camera system on the Mars Odyssey spacecraft, has been draped over topography data obtained by Mars Global Surveyor.
		The temperature differences in these daytime images are due primarily to lighting effects, where sunlit slopes are warm (bright) and shadowed slopes are cool (dark).
		Gusev crater is a potential landing site for the Mars Exploration Rovers.
	mars.jpl.nasa.gov /odyssey/gallery/craters/PIA04260.html (204 words)

	Mars Information, Planet Mars, The Planet Mars at SPACE.com
		Mars has two moons, Phobos and Deimos, both of which are relatively small in size and not shaped in perfect spheres like the Earth’s moon.
		Mars can be easily seen from Earth without a telescope at a brightness that is only surpassed by the planet Venus, the Moon and the Sun.
		Currently, the Mars rovers Spirit and Opportunity are close to entering their third year exploring the surface of the Mars, gathering images and information so that we may continue to increase our knowledge and understanding of the Red Planet, as well as the possibility of past or future life on Mars.
	www.space.com /mars (699 words)

	ESA Science & Technology: Gusev Crater
		The image was taken by the HRSC instrument in colour and 3D on 16 January 2004 from a height of 320 km.
		Gusev is a large crater about 160 km in diameter.
		Scientists believe that the crater was covered by standing water, maybe in the form of a lake, early in the history of Mars.
	sci.esa.int /science-e/www/object/index.cfm?fobjectid=34531 (114 words)

	Spaceflight Now \| Destination Mars \| Bedrock in Mars' Gusev Crater hints at watery past
		A stunning new picture from the Mars rover Spirit taken from the hillside shows the sweeping plains of Gusev and the crater's rim on the distant horizon.
		This is the Mars Exploration Rover status briefing from July 16.
		Mars rover Spirit's arrival at the Columbia Hills, trouble with one of its wheels and Opportunity's descent into Endurance Crater and all of the latest pictures are presented at this briefing from June 15.
	www.spaceflightnow.com /mars/mera/040818status.html (1361 words)

	Opportunity for a one-way trip down a Mars crater to find evidence of water
		Otherwise, scientists would command the rover to toe-dip into the crater in one or two locations where it is safe to roll in and back out, Squyres said.
		The crater is up to 66 feet deep, its bottom carpeted in a patchwork of dunes.
		Halfway around Mars, Spirit was several weeks away from a cluster of hills that could represent a scientific bonanza in its own right.
	www.uswaternews.com /archives/arcglobal/4oppoforx5.html (644 words)

	ScienceDaily: Bedrock In Mars' Gusev Crater Hints At Watery Past
		Mars Rover Arrival At Deeper Crater Provides A Tempting Eyeful (May 7, 2004) -- Scientists and engineers celebrated when they saw the first pictures NASA's Opportunity sent from the rim of a stadium- sized crater that the rover reached after a six-week trek across martian...
		Mars Exploration Rover -- NASA's Mars Exploration Rover (MER) Mission is an unmanned Mars exploration mission that sent two robotic rovers Spirit and Opportunity to explore the Martian surface and geology.
		Impact crater -- An impact crater is a circular depression on a surface, usually referring to a planet, moon, asteroid, or other celestial body, caused by a collision of a smaller body (meteor) with the...
	www.sciencedaily.com /releases/2004/08/040819083049.htm (1973 words)

	Cornell News: Northeast colder than Mars (Site not responding. Last check: 2007-10-14)
		Temperature for Mars rover at lunchtime: 12 degrees; temperature in U.S. Northeast: minus 13 to 9 degrees
		Mars time, according to mission science team member Michael Smith of the NASA Goddard Space Flight Center.
		Mars is 1.5 times farther from the sun than Earth.
	www.news.cornell.edu /releases/jan04/MarsTemps.bpf.html (297 words)

	Crater on mars
		Reply to crater on mars this parent rewheres the light units produced the chicxulub impact basin.
		crater on mars trout, brown trout, cutthroat trout, steelhead trout, coho.
		More on crater near the basin were more missing than I eventually decided to crater on mars purchase one instead.
	crater.sounderpro.com /crater-on-mars.html (1957 words)

	Mars rocks, chemistry summary Gusev Crater Discussion - Mars Rover Blog
		Aldo, The Greenwood and Blake abstract about Mars' phosphorus chemistry that you posted in reply 14 actually asks "the BIG question" (their emphasis, bless their hearts).
		On Mars soil and dust have been contributing material to rocks at the surface, sometimes forming whole rock and sometimes slowly changing the chemistry of existing rock, as at Meridiani.
		As I mentioned previously HP may be a remnant cinder cone, which by the way are plentiful on mars.
	www.marsroverblog.com /discuss-38502-mars-rocks-chemistry-summary-gusev-crater.html (1879 words)

	The Flame Trench space blog by Florida Today
		NASA's Mars scientists unveiled spectacular new images today of Mars' Victoria Crater, both from orbit and from the rim, where rover Opportunity is about to begin a new chapter in its epic scientific mission.
		MRO shows a lot for Opportunity to explore: boulders, small craters on the edge of the big one, streaks from shifting sand and rock, evidence of wind erosion and exposed layers in cliff walls.
		Opportunity has already discovered a history of water on Mars in Meridiani Planum, while Spirit has been exploring the violent volcanic past of Gusev Crater, on the other side of the planet.
	www.floridatoday.com /floridatoday/blogs/spaceteam/2006/10/spectacular-mars-crater-pictures.html (433 words)

	Living on Mars Time :: Astrobiology Magazine ::
		Summary (Dec 15, 2003): During the upcoming Mars Exploration Rover missions, participating scientists and engineers will be waking and going to bed with the rising and setting of the sun - on Mars.
		When NASA's Mars Exploration Rover-A, more affectionately known as "Spirit," touches down in Gusev Crater, it will be approximately 8:30 PM, January 3rd, 2004, at mission control.
		Scientists also divide Mars up into time zones similar to our own, so that at any given spot on Mars there is a local time that is offset by some number of martian hours from universal Mars time.
	www.astrobio.net /news/article721.html (1281 words)

	The Spirit Rover's Athena Science Investigation at Gusev Crater, Mars -- Squyres et al. 305 (5685): 794 -- Science (Site not responding. Last check: 2007-10-14)
		Mars Exploration Rover Geologic traverse by the Spirit rover in the Plains of Gusev Crater, Mars.
		Mineralogy at Gusev Crater from the Mossbauer Spectrometer on the Spirit Rover.
		Textures of the Soils and Rocks at Gusev Crater from Spirit's Microscopic Imager.
	www.sciencemag.org /cgi/content/abstract/305/5685/794 (835 words)

	Gusev Crater (Site not responding. Last check: 2007-10-14)
		Gusev crater, located at 14.6°S, 184.6°W, appears to be the site of an ancient lakebed, according to some scientists who believe that Mars was once warmer and had liquid surface water.
		Earth-based radar altimetry of Gusev (plots data from Goldstone dataset, on CDROM MG_1001, against the above map).
		Light-halo craters from Viking frame 433S07 may reveal something about the depths and types of strata layers in Gusev.
	ic-www.arc.nasa.gov /projects/bayes-group/Atlas/Mars/special/Gusev (239 words)

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