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	Hellas Planitia - Wikipedia, the free encyclopedia
		Hellas Planitia, also known as the Hellas Impact Basin, is a roughly circular impact crater located in the southern hemisphere of the planet Mars.
		To get an idea of its size, if all the material excavated from it were spread evenly on the continental United States, there would be a 3.5 km (2 miles) thick layer of debris.
		Due to its size and contrasting light colour, Hellas Planitia was one of the first Martian features discovered from Earth by telescope.
	en.wikipedia.org /wiki/Hellas_Planitia (366 words)

	Geologic map of the Atalanta Planitia quadrangle (V-4), Venus
		The Atalanta Planitia quadrangle (V-4) is in the northern hemisphere of Venus and extends from 50º to 75º north latitude and from 120º to 180º east longitude.
		Before the Magellan mission, Atalanta Planitia was known on the basis of Pioneer Venus altimetry to be a lowland area; Venera 15 and 16 radar images showed that it was surrounded by several coronae and coronalike features from the west and by numerous ridge belts parallel to the basin margin to the east.
		Atalanta Planitia gravity and geoid data show that the lowland is characterized by a -35 mGal gravity anomaly and a -55 m geoid anomaly, centered on eastern Atalanta.
	pubs.usgs.gov /imap/i2792 (499 words)

	ch4
		Teardrop-shaped "islands" are shown at the mouth of Ares Vallis near the southern boundary of Chryse Planitia.
		Flow was from the south and apparently diverged around obstacles such as craters and low hills to form a sharp prow upstream and an elongate tail downstream.
		The west side of Chryse Planitia has been extensively sculpted by flow from Maja Vallis, which is situated just to the left of this mosaic.
	history.nasa.gov /SP-441/ch4.htm (1348 words)

	Shupe \| chryse planitia
		This story is one all people should know, for in an age in which we have yet to set a human foot on Mars, the legacy of this manmade mechanical explorer should stand with those of Neil Armstrong and Sputnik.
		In 1877, Schiaparelli observed with the aid of a telescope a bright region on Mars and named it Chryse after a golden land rumored in ancient times to be located east of the Indian Ocean.
		Chryse Planitia was chosen as the landing site, not only because from the Viking I observations it appeared to be very smooth, but also because those same pictures showed large channels running into the desert plains which seemed to indicate that large amounts of water had been emptied into this region.
	www.sccs.swarthmore.edu /users/05/shupe/chryse_planitia.html (569 words)

	Isidis Planitia
		A vast, nearly circular plain on Mars centered at 12°N, 273°W. Its circular shape has led researchers to suspect that it is the site of a very ancient, highly eroded basin formed by asteroid or comet impact when the planet was still very young.
		All over Isidis Planitia are found craters, ripple-like, light-toned, windblown dunes, and rugged mounds with summit pits.
		The mounds with summit pits might mark the location of impact craters that formed in a layer of material that used to cover much of Isidis Planitia, but has been largely stripped away, leaving the floors of former impact craters standing high upon remnants of this formerly more extensive layer.
	www.daviddarling.info /encyclopedia/I/Isidis_Planitia.html (238 words)

	Catalog Page for PIA03796
		This polygon pattern is relatively common in the northern plains of Mars, and are primarily located in Acidalia Planitia, Elysium Planitia, and Utopia Planitia.
		Utopia Planitia became "somewhere" for the first time, however, when its first visitor, the Viking 2 lander, settled down and analyzed the area.
		Because Utopia Planitia is a volcanic region of Mars, these rifts in the surface could have formed when volcanic material cooled and then contracted.
	photojournal.jpl.nasa.gov /catalog/PIA03796 (499 words)

	Adler Planetarium / Learning Astronomy / Planets / Mars / Argyre Planitia (Site not responding. Last check: 2007-10-19)
		Argyre Planitia is located in the southern highlands.
		It is the second largest impact basin on Mars after Hellas Planitia.
		This means the impact that created Argyre Planitia is thought to have occured 3.9 billion years ago.
	www.adlerplanetarium.org /learn/planets/mars/argyreplanitia.ssi (87 words)

	Utopia Planitia -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-19)
		Utopia Planitia is the location where the (Click link for more info and facts about Viking 2) Viking 2 (The 4th planet from the sun) Mars lander landed and first explored on September 3, 1976.
		In the fictional (Click link for more info and facts about Star Trek) Star Trek universe, Utopia Planitia is home to the (Click link for more info and facts about Utopia Planitia Fleet Yards) Utopia Planitia Fleet Yards, both on the surface of the planet and in orbit.
		The (Click link for more info and facts about Galaxy class) Galaxy class of starships, including the (Click link for more info and facts about USS Enterprise-D) USS Enterprise-D, were designed and built there.
	www.absoluteastronomy.com /encyclopedia/u/ut/utopia_planitia.htm (364 words)

	Utopia Planitia Fleet Yards - Memory Alpha
		A part of the Utopia Planitia Fleet Yards in orbit of Mars in the year 2371.
		The Utopia Planitia Fleet Yards, or Utopia Planitia Ship Yards, is a key Starfleet starship construction and design facility in the 24th century.
		Captain Benjamin Sisko was assigned to Utopia Planitia sometime after the battle of Wolf 359, where he assisted in the design work and flight tests of the USS Defiant.
	www.memory-alpha.org /en/wiki/Utopia_Planitia_Fleet_Yards (256 words)

	Geologic Map of the Rusalka Planitia Quadrangle (V-25), Venus
		The Rusalka Planitia quadrangle (herein referred to as V-25) occupies an 8.1 million square kilometer swath of lowlands nestled within the eastern highlands of Aphrodite Terra on Venus.
		The history detailed within the Rusalka Planitia quadrangle is that of the extended evolution of long-wavelength topographic basins in the presence of episodes of extensive corona-related volcanism, pervasive low-intensity small-scale eruptions, and an early phase of regional circumferential shortening centered on central Aphrodite Terra.
		Two broad circular basins dominate V-25 geology: northern Rusalka Planitia lies in the southern half of the quadrangle, whereas the smaller Llorona Planitia sits along the northwestern corner of V-25.
	pubs.usgs.gov /imap/i2783 (507 words)

	Adler Planetarium / Learning Astronomy / Planets / Venus / Guinevere Planitia (Site not responding. Last check: 2007-10-19)
		Guinevere Planitia is a large lowland area of Venus covered with ancient lava flows.
		Parts of the planitia (planitia means lowland plains) are usually 1 to 2 kilometers below the average surface height of Venus.
		Guinevere Planitia is also home to three shield volcanos that rise between 700 and 2000 meters above the surrounding plains.
	www.adlerplanetarium.org /learn/planets/venus/guinevere.ssi (150 words)

	Utopia_Planitia_Fleet_Yards (Site not responding. Last check: 2007-10-19)
		In the fictional world of Star Trek, the Utopia Planitia Fleet Yards is a large Federation shipyard in synchronous orbit over Utopia Planitia on Mars in the 24th century.
		Captain Benjamin Sisko served at Utopia Planitia for two years from 2367 to 2369, overseeing the development of the Defiant class starship.
		In 2371, the starship Fredrickson (NCC-42111) underwent a refit at Utopia Planitia.
	www.startrekconvention.com /search.php?title=Utopia_Planitia_Fleet_Yards (165 words)

	Isidis Planitia :: Mars Astrobiology Magazine :: Search for Life on Mars
		Summary: Today's images from Mars include: Isidis Planitia and Icaria Planum (Released 23 December 2003), from the Mars Global Surveyor and 2001 Mars Odyssey spacecrafts.
		This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a small portion of the vast Isidis Planitia, the region in which the Beagle 2 is scheduled to land on 25 December 2003.
		Many of these are remnants of a layer (or group of sub-resolution layers) that once more extensively covered Isidis Planitia, but was later stripped away, revealing previously-buried meteor impact craters.
	mars.astrobio.net /news/article175.html (573 words)

	PSR Discoveries: Outflow Channels in Chryse Planitia, Mars
		Ivanov and Head hypothesize that the change in channel topography is consistent with flow of water from a river into a submarine environment with possible deposition of sediments by density currents deep into the North Polar basin.
		MOLA data show that Chryse Planitia is not a closed basin, as thought previously, but rather a low area with a gentle regional slope to the north-northeast.
		Some of the channels continue out of Chryse Planitia for hundreds of kilometers into the North Polar basin, but their patterns are subdued and very different once past their recognized termini.
	www.psrd.hawaii.edu /June01/MarsChryse.html (1607 words)

	Utopia Planitia - Wikipedia, the free encyclopedia
		The Galaxy class of starships, including the USS Enterprise-D, were designed and built there.
		The later USS Voyager also came from the shipyards.
		PIA00576: Martian Sunrise at Utopia Planitia (NASA Photojournal)
	en.wikipedia.org /wiki/Utopia_Planitia (307 words)

	USGS Astro: Planetary Nomenclature - Mercury Nomenclature Planitia (Site not responding. Last check: 2007-10-19)
		Budh Planitia 22.0N 150.9W 0.0 AS IN I993 H-8 5 1976 83 PL Hindu word for Mercury.
		Suisei Planitia 59.2N 150.8W 0.0 AS JA I1056 H-3 5 1976 80 PL Japanese messenger god.
		Tir Planitia 0.8N 176.1W 0.0 EU NS I993 H-8 5 1976 80 PL Norse word for Mercury.
	planetarynames.wr.usgs.gov /mercury/mercplan.html (164 words)

	Isochrons for Martian Crater Populations of Various Ages
		Viking imagery shows identifiable flow fronts in Amazonis Planitia, and MGS image MO2-04131, which crossed one of the young flow fronts (Fig.
		In at least some cases, the intricate ridge systems (right upper center), similar to examples in Elysium Planitia, appear to be termini of flows.
		The “older” lava flows of Amazonis Planitia appear to fit well the isochrons giving a model age of about 100 Ma to 1000 Ma, interpreted as the true age of the flows, and the younger flows give a model age of about 9 Ma to 90 Ma for the youngest flows.
	www.psi.edu /projects/mgs/chron04c.html (2743 words)

	USGS Astro: Planetary Nomenclature - Triton Nomenclature Planitia (Site not responding. Last check: 2007-10-19)
		ORIGIN Ruach Planitia 28.0N 24.0E 0.0 EU FR I2153 5 91 83 PL French isle of winds.
		Ryugu Planitia 5.0S 27.0E 0.0 AS JA I2153 5 91 27 PL Japanese undersea dragon palace.
		Sipapu Planitia 4.0S 36.0E 0.0 NA PU I2153 5 91 83 PL Pueblo (USA) hole or lake of emergence from underworld.
	planetarynames.wr.usgs.gov /neptune/tritplan.html (113 words)

	ESA Science & Technology: Beagle 2 landing site selected (Site not responding. Last check: 2007-10-19)
		The Mars Express lander, Beagle 2, will land on Isidis Planitia, a large flat region that overlies the boundary between the ancient highlands and the northern plains.
		The site is also at a low enough elevation to allow the parachutes sufficient atmosphere to brake the lander's descent, has few steep slopes down which the tiny probe may have to bounce as it lands, and doesn't seem to be too dusty.
		Further studies, however, showed that the probe would be unable to function properly at these sites because their latitudes make them too cold in early spring.
	sci.esa.int /content/news/index.cfm?aid=9&cid=32&oid=25649 (588 words)

	Mars Cards (Site not responding. Last check: 2007-10-19)
		A large rock on Chryse Planitia photographed by Viking I. It is 6 feet wide and covered with red soil.
		This valley is a channel that may have been formed by a flood of water over a billion years ago.
		An 103 km-wide impact crater in Utopia Planitia, near the spot where the Viking 2 lander touched down.
	www.thursdaysclassroom.com /20jul01/Concentration.html (371 words)

	Origin of the Names (Site not responding. Last check: 2007-10-19)
		First of all, Olympia Planitia is a region on Mars.
		Utopia Planitia is also the place where the U.S.S. Enterprise-D (Star Trek: The Next Generation), was constructed, which is why it's so popular.
		Another reason I chose Olympia Planitia is that most of the Utopia Planitia pages are either NASA pages or Star Trek pages, and mine is a personal homepage.
	www.ocf.berkeley.edu /~kliu/zname.html (170 words)

	SPACE.com -- Mars Odyssey's Picture of the Day: Isidis Planitia Basin
		The photos are not yet fully calibrated for scientific use, and so no science findings are being discussed, said researchers who operate the camera from Arizona State University.
		This image, crossing the southern rim of the Isidis Planitia basin, displays the contrasting morphologies of the relatively rough highland terrain (in the lower portion of the image) and the relatively smooth materials of the basin (at top).
		Upon closer viewing, the basin materials display an extensive record of cratering, including a small cluster of craters just north and west of the two prominent craters in the upper part of the image.
	www.space.com /scienceastronomy/solarsystem/mars_daily_020411.html (587 words)

	Star Trek : Freedom (Site not responding. Last check: 2007-10-19)
		None of this would be possible without the efforts of men and women who devote their lives to the design, construction and upkeep of the entire Starfleet.
		And of that special few, none are as talented as those who gain admittance to the Shipyard of Utopia Planitia, in orbit above Mars.
		Utopia Planitia has set the standard since its creation, and will continue to keep the standards high well into the future, regardless of what the future might hold...
	www.sfintel.com (156 words)

	Utopia, Mars (Site not responding. Last check: 2007-10-19)
		A location with similar properties [to Cydonia Mensae] was found by one of the authors, Dr John Brandenburg, using the Atlas of Mars.
		In a region of Mars called Utopia Planitia, a long water channel was found called Hrad (Raad) Vallis.
		This channel runs from the zero kilometer contour to higher elevations and branches into "head waters" near the base of a large volcano called Hecates Tholus.
	www.mufor.org /utopia (182 words)

	Utopia Planitia -- Encyclopædia Britannica
		Photographs transmitted from the Viking 2 lander, which touched down at 47.97° N, 225.74° W, on September 3, 1976, depicted a boulder-strewn plain that superficially resembles the Viking 1 landing site in Chryse Planitia.
		More results on "Utopia Planitia" when you join.
		These include Chryse Planitia and Acidalia Planitia (centred on 30° W longitude), Amazonis Planitia (160° W), and Utopia Planitia (250° W).
	www.britannica.com /eb/article-9074564?tocId=9074564&query=null&ct=null (802 words)

	Area 001: Fleetyard Information
		The Utopia RandD facility that was located on the surface, established in the year 2338, was already providing many "new technologies" for the Federation and it was felt that a new orbital facility would greatly enhance the production of new ships.
		Later the A.S.D.B. Headquarters were moved from Star Fleet Headquarters in San Francisco to the Utopia Planitia planet facility.
		Of course, not all new star ships would be built in Utopia Planitia because of security reasons.
	home.coqui.net /hannbio/fletyard.htm (1238 words)

	Rob's STAR TREK Episode Guide (Site not responding. Last check: 2007-10-19)
		Utopia Planitia Fleet Yards is the Federation and Starfleet's starship development and manufacturing facility.
		The ASDB Integration Facility unit of Utopia Planitia is located on the planet surface.
		The Utopia Planitia engineers use these specifications to build a prototype starship, from which production starships are then built.
	www.durfee.net /StarTrek/c_UPFY.html (101 words)

	ESA Science & Technology: Crater dunes in Argyre Planitia (Site not responding. Last check: 2007-10-19)
		The above image, taken by the High Resolution Stereo Camera (HRSC) on board ESA's Mars Express spacecraft, shows a Martian crater with a dune field on its floor.
		The image was taken during orbit 427 in May 2004, and shows the crater with a dune field located in the north-western part of the Argyre Planitia crater basin.
		The image is centred at Mars longitude 303° East and latitude 43° South.
	sci.esa.int /science-e/www/object/index.cfm?fobjectid=36152 (205 words)

	Astronomy CD ROM I - Strange Surfaces of Hellas Planitia (Site not responding. Last check: 2007-10-19)
		Unique among the MOC images is a suite of pictures from northwestern Hellas Planitia, such as the example shown here.
		The seeming familiarity of many MOC images, such as those showing earth-like sand dunes or stream-like gullies might give the impression that it is pretty easy to understand what MOC images are telling us about the geology of Mars.
		This picture appears to be a jumble of plates or layers exposed at the surface but subsequently covered by a thin mantle to give the scene a uniform brightness.
	astroa.physics.metu.edu.tr /Astronom/MARS/PIA03210.HTM (193 words)

	Lab for Terrestrial Physics Education and Outreach Page (Site not responding. Last check: 2007-10-19)
		Viking 2 landed at Utopia Planitia on September 3, 1976.
		The topography of the Utopia Planitia is remarkably flat, with slopes in the near field of less than 1 degree and those on the horizon all less than 2 degrees.
		Below are images of Utopia Planitia and the Viking 2 landing spot.
	ltpwww.gsfc.nasa.gov /education/viking2.html (237 words)

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