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Topic: List of craters on Ganymede

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	Reference.com/Encyclopedia/Ganymede (moon)
		Ganymede is composed of silicate rock and water ice, with an ice crust floating over a warmer ice mantle that may contain a layer of liquid water.
		The density of cratering indicates an age of 4 billion years for the dark terrain, similar to the highlands of the Moon, and a somewhat younger age for the bright grooved terrain (but how much younger is uncertain).
		Ganymede's intrinsic magnetic field is probably generated in a similar fashion to the Earth's: as a result of conducting material moving in the interior, likely originating in its metallic core.
	www.reference.com /browse/wiki/Ganymede_(moon) (927 words)

	Crater (Site not responding. Last check: 2007-10-03)
		Craters are typically caused by meteorite impacts, although some are caused by volcanic activity (see volcano for more on these).
		In the center of craters on Earth a crater lake often accumulates, and in craters formed by meteorites a central island (caused by rebounding crustal rock after the impact) is usually a prominent feature in the lake.
		Few underwater craters have been discovered because of the difficulty of surveying the sea floor; the rapid rate of change of the ocean bottom; and the subduction of the ocean floor into the Earth's interior by processes of continental drift.
	www.1-free-software.com /en/wikipedia/c/cr/crater.html (1169 words)

	CONK! Encyclopedia: Impact_crater (Site not responding. Last check: 2007-10-03)
		An impact crater (impact basin or sometimes 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 (meteorite) with the surface.
		In the center of craters on Earth a crater lake often accumulates, and a central island or peak (caused by rebounding crustal rock after the impact) is usually a prominent feature in the lake.
		Few underwater craters have been discovered because of the difficulty of surveying the sea floor; the rapid rate of change of the ocean bottom; and the subduction of the ocean floor into the Earth's interior by processes of plate tectonics.
	www.conk.com /search/encyclopedia.cgi?q=Impact_crater (1967 words)

	Ganymede (moon) - Wikipedia, the free encyclopedia
		Although the name "Ganymede" was suggested by Simon Marius soon after its discovery, this name and the names of the other Galilean satellites fell into disfavor for a considerable time, and were not revived in common use until the mid-20th century.
		Ganymede is composed of silicate rock and water ice, with an ice crust floating over a slushy mantle that may contain a layer of liquid water.
		Ganymede is referred to in virtually all of Philip K. Dick's novels from the 50s and 60s, although it seldom receives more than a brief mention.
	en.wikipedia.org /wiki/Ganymede_(moon) (1167 words)

	Impact crater Summary
		An impact crater is a physical scar on a planetary body's surface (topographic depression or geological structure) that is the result of hypervelocity impact by a minor planet, such as an asteroid, comet, or meteorite.
		An impact crater (impact basin, astrobleme or sometimes crater) is a circular or oval 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 surface.
		Few underwater craters have been discovered because of the difficulty of surveying the sea floor; the rapid rate of change of the ocean bottom; and the subduction of the ocean floor into the Earth's interior by processes of plate tectonics.
	www.bookrags.com /Impact_crater (5611 words)

	Learn more about Ganymede (moon) in the online encyclopedia. (Site not responding. Last check: 2007-10-03)
		Ganymede is Jupiter's largest moon, and indeed the largest moon in the entire solar system; it is larger in diameter than Mercury but only about half its mass.
		Preliminary indications from the Galileo probe data suggest that Ganymede is differentiated into a three layer structure: a small molten iron or iron/sulfur core surrounded by a rocky silicate mantle with a icy shell on top.
		Ganymede's surface is a roughly equal mix of two types of terrain: very old, highly cratered dark regions and somewhat younger (but still ancient) lighter regions marked with an extensive array of grooves and ridges.
	onlineencyclopedia.org /g/ga/ganymede__moon_.html (661 words)

	Our Solar System - Ganymede (Site not responding. Last check: 2007-10-03)
		Since Ganymede has a low density of 1.94 grams/cubic centimetre (water's density = 1.00), it was originally estimated that the satellite is half water ice with a rocky core extending to half of the satellite's radius.
		The dark regions on Ganymede are old and rough, and the dark, cratered terrain is believed to be the original crust of the satellite.
		Both bright and dark rays of ejecta exist around Ganymede's craters - rays tend to be bright from craters in the grooved terrain and dark from the dark cratered terrain.
	www.dunnbypaul.net /solarsystem/classic/ganymede.html (409 words)

	Ganymede (moon)
		Ganymede is composed of silicate rock and water ice, with an ice crust floating over a slushy mantle that may contain a layer of liquid water.
		The largest feature on Ganymede is a dark plain named Galileo Regio, as well as a series of concentric ridges that are remnants of an ancient impact crater long since obscured by subsequent geological activity.
		Ganymede is referred to in virtually all of Philip K. Dick's novels from the 50s and 60s, although it seldom receives more than a brief mention.
	www.mlahanas.de /Greeks/Astro/Ganymede.html (1113 words)

	Search Tuna Report for Impact Craters (Site not responding. Last check: 2007-10-03)
		Cratering of the terrestrial planets shows a record of two distinct periods, one from the late period of heavy bombardment and the other from a bombardment of asteroids and comets which occured more recently.
		Craters produced by an impact that is normal to the surface tend to be radially symmetric: rim crests have roughly equal elevations everywhere and are concentric with the crater floor outline, while flanks appear the same in all radial directions.
		The brightness of the crater floor in Magellan images appears to depend on the incidence angle of the radar, the size of the crater, the terrain on which the crater formed, and the amount of infilling by lava or impact melt.
	searchtuna.com /ftlive/466.html (6948 words)

	List of reference tables
		This is a list of reference tables, similar to the collection of reference tables found at the back of almanacs, dictionaries and encyclopedias (or an index of them, if they're scattered throughout the work).
		List of mean centers of U.S. population during the 20th century
		List of monasteries dissolved by Henry VIII of England
	www.starrepublic.org /encyclopedia/wikipedia/l/li/list_of_reference_tables.html (1037 words)

	NASA's Solar System Exploration: Planets: Jupiter: Moons: Ganymede
		Ganymede [GAN-ee-meed] is the largest moon of Jupiter and is the largest in our solar system with a diameter of 5,262 km (3,280 miles).
		Ganymede's mantle is most likely composed of ice and silicates, and its crust is probably a thick layer of water ice.
		Ganymede is mottled by both light and dark regions.
	solarsystem.nasa.gov /planets/profile.cfm?Object=Ganymede (334 words)

	IMPACT CRATER FACTS AND INFORMATION (Site not responding. Last check: 2007-10-03)
		In the center of craters on Earth a crater_lake often accumulates, and a central island or peak (caused by rebounding crustal rock after the impact) is usually a prominent feature in the lake.
		Daniel_Barringer (1860-1929) was one of the first to identify a geological structure as an impact crater, the Barringer Meteorite Crater (or the "Meteor Crater") in Arizona, but at the time his ideas were not widely accepted, and when they were, there was no recognition of the fact that Earth impacts are common in geological terms.
		The Barringer_crater in Arizona is a perfect example of a simple crater, a straightforward bowl in the ground.
	www.19gmarketinggroup.com /Impact_crater (1978 words)

	List of reference tables
		This is a list of reference tables, similar to the collection of reference tables found at the back of almanacs, dictionaries and encyclopedias (or an index of them, if they're scattered throughout the work).
		List of mean centers of U.S. population during the 20th century
		List of monasteries dissolved by Henry VIII of England
	www.sciencedaily.com /encyclopedia/list_of_reference_tables (825 words)

	Ganymede (moon) (Site not responding. Last check: 2007-10-03)
		Ganymede (gan'-i-meed, Greek Γανυμήδης) is Jupiter's largest moon, and indeed the largest moon in the entire solar system; it is larger in diameter than Mercury but only about half its mass.
		Although the name "Ganymede" was suggested by Simon Marius soon after its discovery, this name and the names of the other Galilean satellites curiously fell into disfavor for a considerable time, and were not revived in common use until the mid-20th century.
		Ganymede is mentioned several times and visited by characters in the anime series Cowboy Bebop.
	www.worldhistory.com /wiki/G/Ganymede-(moon).htm (975 words)

	Remote Sensing Tutorial Page 19-17
		Ganymede is unique among the four satellites in that it shows contrasting crustal blocks (some darker) which suggests it may have been disrupted and reassembled.
		The craters on Ganymede, as well as those on Callisto, the last of the Galilean four, differ from those on, say, the Moon, in that nearly all of them lack raised rims and central peaks.
		For larger craters this should be conspicuous, but the effects of gravity almost completely obliterate these impact effects by causing these features to collapse or slump down as the ice responds by viscous flow that levels the higher sections of the structures.
	www.fas.org /irp/imint/docs/rst/Sect19/Sect19_17.html (1648 words)

	Ganymede May Harbour Hidden Ocean
		Add Jupiter's moon Ganymede, which is bigger than two of the solar system's nine planets, to the growing list of worlds with evidence of liquid water under the surface.
		Ganymede is the biggest moon in the solar system and bigger than the planets Mercury and Pluto.
		Ganymede is covered with lots of ice and frost, both in the older, dark terrains and younger, bright terrains, said Dr. Thomas McCord, a geophysicist at the University of Hawaii, Honolulu, who has been using Galileo's infrared spectrometer instrument to identify surface materials on Ganymede.
	www.spacedaily.com /news/galileo-00r.html (928 words)

	List of reference tables - Facts, Information, and Encyclopedia Reference article
		List of city nicknames (with a separate list of city nicknames in the United States)
		List of Acts of the Parliament of Ireland
		List of Justices of the Supreme Court of the United States by court composition
	www.startsurfing.com /encyclopedia/l/i/s/Lists.html (974 words)

	Learn more about List of reference tables in the online encyclopedia. (Site not responding. Last check: 2007-10-03)
		List of abbeys and priories: Ireland, England, Scotland, Wales, Northern Ireland
		List of accidents and incidents on commerical airliners grouped by airline
		List of Judicial Committees of the Privy Council & House of Lords cases
	www.onlineencyclopedia.org /l/li/list_of_reference_tables.html (1071 words)

	NASA - In Search of Crater Chains
		One, on the floor of the crater Davy, is spectacular--an almost perfect line of 23 pockmarks each a few miles in diameter.
		At least one of the craters had never been catalogued before, and both, almost incredibly, lined up with the Aorounga crater 200 km away: map.
		To prove a crater is a crater—and not, say, a volcano—researchers must visit the site to look for signs of extraterrestrial impact such as "shatter cones" and other minerals forged by intense heat and pressure.
	science.nasa.gov /headlines/y2006/12may_craterchains.htm?list161084 (941 words)

	APOD Search Results for "craters"
		impact craters on the Moon, the central uplift was produced by a rebound of the suddenly molten lunar crust during the violent impact event.
		Degraded craters are typically older and have their rims more rounded, while "ghost craters" are the oldest of all and only faintly discernable.
		Craters older than Degas are covered by the ray material while younger craters are seen superimposed on the rays.
	antwrp.gsfc.nasa.gov /cgi-bin/apod/apod_search?craters (10481 words)

	NASAexplores 9-12 Lesson: Ganymede's (And Other's) Geology (Student Sheets)
		Relatively fresh or large craters commonly show a blanket of bright ejecta, material thrown from the crater as it was formed.
		List and describe the many characteristics of the bright and dark terrains. Be as detailed as possible.
		Include factors such as albedo, number of craters, general surface appearance, and other characteristics that are apparent.
	www.nasaexplores.com /show_912_student_st.php?id=040511145517 (1837 words)

	Craters, Cratering, and What It Can Tell Us
		And to a geologist, craters are useful features, because they allow us to make an assessment of the age of a planetary surface and even the nature of its interior.
		Complex Craters (the larger one) are bigger, have less prominently raised rims (due to erosion of the rims), and show a raised zone in the center, associated with rebound in the rocks below.
		Large craters are associated with the ejection of a lot of material, which distributes itself around the crater in different ways.
	www.cas.usf.edu /~jryan/craters.html (693 words)

	NTU Info Centre: Crater (Site not responding. Last check: 2007-10-03)
		A crater (basin or impact crater) is a circular depression on a surface, usually referring to a planet, moon, asteroid, or other celestial body.
		Craters are caused by meteorite impacts or electrical discharge, although some are caused by volcanic activity (see volcano for more details), or karstic erosion (see Karst Crater for more details).
		The impact at Chicxulub is believed to have produced tsunamis 50 to 100 metres (150-300 feet) high which deposited debris many miles inland.
	www.nowtryus.com /article:Crater (1628 words)

	Spaceflight Now \| Breaking News \| Ocean believed hidden on solar system's largest moon
		The scarcity of craters on Europa illustrates the relative youth of its surface compared to Ganymede's.
		Unusual for Ganymede, it is possible that Arbela Sulcus has formed by complete separation of Ganymede's icy crust, like bands on Europa.
		The scarcity of craters on Europa attests to the relative youth of its surface compared to Ganymede's.
	spaceflightnow.com /news/n0012/17ganymedeocean (1457 words)

	Site Contents at the free Online Encyclopedia. (Site not responding. Last check: 2007-10-03)
		You are here: Online Encyclopedia > Site Map pg 4 > List of countries by...
		List of countries involved in World War II
		In a household, clothes hangers are the single one item that you own the most of, yet no one can name even one brand?
	www.onlineencyclopedia.org /index_190.html (116 words)

	My Photojournal Favorite's List (Site not responding. Last check: 2007-10-03)
		This page will list the set of images you have selected while using the Photojournal.
		This list is kept for a short period of time, about 60 days.
		The way we associate you with your list is through a persistent cookie left on your computer.
	www.bonus.com /contour/NASA_Photojournal/http@@/photojournal.jpl.nasa.gov/favorites/PIA01060?action=remove (73 words)

	Chapter 16 - Geology of Ganymede (Site not responding. Last check: 2007-10-03)
		The craters postdate the grooved terrain since each is surrounded by swarms of smaller craters formed by material which was ejected out of the crater as it formed, and which subsequently reimpacted onto the surrounding surface.
		The crater to the north, Gula, which is 38 kilometers (km) in diameter, has a distinctive central peak, while the crater to the south, Achelous, (32 km in diameter) has an outer lobate ejecta deposit extending about a crater radius from the rim.
		Ganymede's magnetic field, which was detected by the magnetometer on NASA's Galileo spacecraft in 1996, may be partly responsible for the appearance of thepolar terrain.
	dosxx.colorado.edu /JUPITER/CD/CH16/Ch16.html (7437 words)

	Shaping Surfaces in the Solar System: The Impacts of Comets and Asteroids
		To create impact craters, we will be dropping steel ball bearings into a container filled with ordinary baking flour.
		If you still have a crater in your tub, great, if not create one (any height more than 1 meter is fine).
		List some properties of the comet you built.
	ganymede.nmsu.edu /astr110/a110labs/labmanual/node3.html (2829 words)

	GuruNet — Content Map
		List of creatures that pretend to be human
		List of cruiser classes of the Royal Navy
		List of cruisers of the United States Navy
	www.gurunet.com /cm-dsid-2222-letter-1L-first-18451 (61 words)

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