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Topic: Crater of the Moon

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	Crater Chains on the Earth and Moon
		A crater chain is formed when an asteroid or comet with low tensile strength is pulled apart by tides during a close approach to a planet, separating into a train of fragments which hit a moon of the planet rather than escaping to interplanetary space.
		First, the structures filling in the gaps in the Missouri crater chain between Decaturville and Crooked Creek may not be of impact origin, implying this chain may not be a chain at all.
		Second, the Aorounga impact crater and the ~10 km circular structure adjacent to it may be an example of a doublet crater, produced by the impact of a binary asteroid (Bottke and Melosh 1996).
	www.boulder.swri.edu /~bottke/crater_chain/chain.html (910 words)

	Moon - Wikipedia, the free encyclopedia
		The gravitational attraction that the Moon exerts on Earth is the cause of tides in the sea.
		The tidal bulges on Earth, caused by the Moon's gravity, are carried ahead of the apparent position of the Moon by the Earth's rotation, in part because of the friction of the water as it slides over the ocean bottom and into or out of bays and estuaries.
		The points where the Moon's orbit crosses the ecliptic are called the "lunar nodes": the North (or ascending) node is where the Moon crosses to the North of the ecliptic; the South (or descending) node where it crosses to the South.
	en.wikipedia.org /wiki/Moon (5253 words)

	Lunar Impact Crater Geology and Structure (Site not responding. Last check: 2007-10-24)
		Craters on the Moon with diameters larger than about 15 kilometers have more complex forms, including shallow, relatively flat floors, central uplifts, and slump blocks and terraces on the inner wall of the crater rim.
		In craters on the Moon with diameters between about 20 and 175 kilometers, the central uplift is typically a single peak or small group of peaks.
		Copernicus Crater, 93 kilometers in diameter, is one of the youngest and freshest impact craters on the nearside of the Moon.
	www.lpi.usra.edu /expmoon/science/craterstructure.html (1154 words)

	Craters Of The Moon National Monument & Preserve (National Park Service)
		A sea of lava flows with scattered islands of cinder cones and sagebrush characterizes this "weird and scenic landscape" known as Craters of the Moon.
		Craters of the Moon National Monument and Preserve contains three young lava fields covering almost half a million acres.
		Craters of the Moon Wilderness Area - October 23, 1970
	www.nps.gov /crmo (214 words)

	The Moon
		The moon's gravity is one-sixth that of the Earth's; a man who weighs 180 lbf (pound-force) on Earth weighs only 30 lbf on the Moon.
		The Moon was heavily bombarded early in its history, which caused many of the original rocks of the ancient crust to be thoroughly mixed, melted, buried, or obliterated.
		This is an oblique view of the large crater Copernicus on the lunar nearside, as phtographed from the Apollo 17 spacecraft in lunar orbit.
	www.solarviews.com /eng/moon.htm (2472 words)

	The Moon
		The highlands are composed of a heavily cratered crust composed largely of anorthosite.
		The central peaks of large impact craters such as Copernicus may be composed of rocks that have been uplifted from deep in the crust.
		Aristarchus is situated on the Aristarchus Plateau, one of the youngest terrains on the moon.
	www.unm.edu /~abqtom/observing_the_moon.htm (2377 words)

	Crater on Moon Linked to Rock Found on Earth
		The rock was reformed 2.8 billion years ago in an impact that carved the Lalande crater, creating a blanket of ejected material.
		Korotev, who was not involved in the study, agrees the third impact likely left the rock at or near the surface, making it a candidate for being launched into space in the fourth impact.
		Gnos allows that the crater fits the data only if the study's assumptions are correct, and he agrees that the location is not as well determined as with the older and larger Imbrium and Lalande events.
	www.space.com /scienceastronomy/moon_rock_040729.html (968 words)

	ch7.2
		The crater is polygonal in outline, its rim is not raised, and its walls are relatively smooth.
		The straight rille grazing the crater is one of several concentric grabens in the dark border material and probably formed by extension as the lava sagged toward the basin center prior to emplacement of the central mare.
		The crater is largely filled by the younger mare unit; because the graben transects the crater rim and its trend is influenced by the crater, the graben is probably younger.
	www.hq.nasa.gov /office/pao/History/SP-362/ch7.2.htm (2287 words)

	SMART-1 view of crater Sulpicius Gallus
		The prominent crater on the upper left area of this mosaic is called Sulpicius Gallus.
		The area around Sulpicius Crater is very interesting for lunar scientists — it is one of the most geologically and compositionally complex areas of the nearside of the Moon.
		He is famous for having predicted an eclipse of the moon on the night before the battle of Pydna (168 BC).
	www.eurekalert.org /pub_releases/2006-07/esa-svo071206.php (521 words)

	SPACE.com -- Giant Crater Found: Tied to Worst Mass Extinction Ever
		The crater, buried beneath a half-mile of ice and discovered by some serious airborne and satellite sleuthing, is more than twice as big as the one involved in the demise of the dinosaurs.
		The crater's location, in the Wilkes Land region of East Antarctica, south of Australia, suggests it might have instigated the breakup of the so-called Gondwana supercontinent, which pushed Australia northward, the researchers said.
		The newfound crater is more than twice the size of the Chicxulub crater in the Yucatan peninsula, which marks the impact that may have ultimately killed the dinosaurs 65 million years ago.
	www.space.com /scienceastronomy/060601_big_crater.html (576 words)

	ESA - SMART-1 - SMART-1 views Glushko crater on the Moon
		The crater is attached to the western rim of Olbers crater was previously designated 'Olbers A' before being renamed in honour of Valentin Petrovitch Glushko, a Russian rocket scientist, by the International Astronomical Union.
		This crater possesses a relatively high albedo and is the focus of a prominent ray system that extends in all directions across the nearby surface.
		In the centre of the crater, there is a rough surface, in morphological terms somewhere in between the smooth ‘bowl’ shape seen in smaller craters, and the defined central peaks in craters larger than 60 kilometres.
	www.esa.int /SPECIALS/SMART-1/SEMXY2A5QCE_0.html (359 words)

	The Youngest Crater on the Moon
		In 1953, a flash was seen on the Moon, probably from the impact of a small asteroid, and Leon Stuart, an amateur astronomer, took a photograph that provides the only definite evidence of the impact.
		Based on the 1953 photograph of the impact, the object that struck the Moon was probably about 300 meters across and its impact would have made a crater up to 2 km in size according to Dr. Bonnie Buratti of the NASA Jet Propulsion Laboratory, and Dr. Lane Johnson of Pomona College.
		Scientists believe the object that hit the Moon was probably the size of about 3 football fields and its impact made a crater 2 km in size, about the size of New York’s Central Park.
	www.windows.ucar.edu /headline_universe/young_crater.backup_MetaRefresh (712 words)

	StarChild: The Moon
		The Moon does not have an atmosphere, so temperatures range from -184 degrees Celsius during its night to 214 degrees Celsius during its day except at the poles where the temperature is a constant -96 degrees Celsius.
		The gravitational pull of the Moon on the Earth affects the ocean tides on Earth.
		As the Moon travels eastward in its orbit, more of its sunlit side becomes visible to Earth and the Moon is said to be "waxing".
	starchild.gsfc.nasa.gov /docs/StarChild/solar_system_level2/moon.html (657 words)

	Moon's Youngest Crater Discovered (Site not responding. Last check: 2007-10-24)
		In 1953 a flash was seen on the Moon that was taken to be the impact of a small asteroid.
		It is believed that new small craters are formed on the Moon every few decades, but this is the first one to have been found.
		Because such a small crater would not be detectable with Earth-based telescopes the astronomers examined images taken by spacecraft orbiting the Moon.
	www.freerepublic.com /focus/f-news/809572/posts (926 words)

	BBC NEWS \| Science/Nature \| Moon's 'youngest' crater discovered
		Is this the youngest crater on the Moon?
		The 1953 photograph of a flash on the Moon by Leon Stuart, an American amateur astronomer, is the only definite evidence of an asteroid-sized body crashing on to the lunar surface.
		In 1178, Gervase of Canterbury reported seeing a bright flash on the Moon and some researchers believe that a crater called Bruno on the far side was the result, but doubt has been cast on this claim.
	news.bbc.co.uk /2/hi/science/nature/2592075.stm (432 words)

	The Sun Online - News: The crater escape from Earth
		AN international colony is to be set up alongside a crater on the moon — as mankind’s first step towards preventing overcrowding on Earth.
		The favoured site for the town is the rim of Shackleton Crater at the moon’s south pole, because it is almost permanently bathed in sunlight.
		Nasa is keen to mine the moon’s resources to build and extend the settlement — and make it as self-sufficient as possible.
	www.thesun.co.uk /article/0,,2-2006560400,00.html (680 words)

	SkyandTelescope.com - Moon - Tycho: The Metropolitan Crater of the Moon
		SkyandTelescope.com - Moon - Tycho: The Metropolitan Crater of the Moon
		Tycho has such a conspicuous nimbus because the crater is so young that its melt deposits have not been pulverized and mixed in with surrounding rocks by myriads of small impacts.
		As far as is known, Tycho is the youngest large crater on the Earth-facing side of the moon.
	www.skyandtelescope.com /observing/objects/moon/3304126.html?page=1&c=y (674 words)

	Crater Jumper -- [ LUNAR SCIENCE ]: Scientific American
		Plentiful ice deposits would be a boon for lunar colonists, who could use the water for life support or convert it to hydrogen and oxygen rocket fuel.
		And two orbiters sent to the moon in the 1990s, Clementine and Lunar Prospector, found evidence of ice in perpetually shadowed polar areas where consistently frigid temperatures would preserve the water carried to the moon by comet and meteorite impacts.
		Yet another alternative would be to fire ground-penetrating instruments at several places in the shadowed basin, either from a lander at the crater's rim or from an orbiting craft.
	www.sciam.com /article.cfm?chanID=sa006&colID=5&articleID=0008228D-A050-13F3-9E7683414B7F0000 (803 words)

	Astronomy at opensource encyclopedia (Site not responding. Last check: 2007-10-24)
		Lunar astronomy: the large crater is Daedalus, photographed by the crew of Apollo 11 as they circled the Moon in 1969.
		Astronomy is one of the few sciences where amateurs still play an active role, especially in the discovery and monitoring of transient phenomena.
		Photographed by Mars Global Surveyor, the long dark streak is formed by a moving swirling column of Martian atmosphere (with similarities to a terrestrial tornado).
	wiki.tatet.com /Astronomy.html (1576 words)

	Blockbuster Online - Deck the Halls (Site not responding. Last check: 2007-10-24)
		Despite Steve's annual holiday zeal, the rest of the Carters have grown to resent the seemingly endless family rituals leading up the Winterfest carnival over which their terminally cheerful patriarch presides.
		Christmas is without question the most wonderful time of the year for Cloverdale, MA optometrist Steve Finch (Broderick).
		Though it seems that nothing in the world could dampen the spirits of the local "King of Christmas," Steve soon finds his royal status challenged when used-car salesman Buddy Hall (Danny DeVito) moves in next door and covers his house with enough festive lights to make it visible from the deepest crater of the moon.
	www.blockbuster.com /catalog/movieDetails/284706 (315 words)

	NASA - Crater 308 on the Moon
		The far side of the Moon is rough and filled with craters.
		By comparison, the near side of the Moon, the side we always see, is relatively smooth.
		Since the Moon is rotation locked to always point the same side toward Earth, humanity has only glimpsed the lunar farside recently -- last century.
	www.nasa.gov /multimedia/imagegallery/image_feature_25.html (160 words)

	Moon Exploration and Science News
		Some in the aerospace community believe that unless NASA sends astronauts back to the Moon and conducts extensive exploration, it is in danger of disappearing as a government agency.
		The goal is for students in the arts, science and engineering to collaboratively engage in NASA's mission to return humans to the moon by 2020, and eventually journey on to Mars and other destinations in the solar system...
		Future NASA astronauts who land on the moon will owe their success in part to the men and women of the Gulf Coast, who are already at work on the next generation of space travel.
	www.moondaily.com (1147 words)

	Lunar Prospector Crash Fails to Liberate Moon Water
		Oct 13, 1999: The controlled crash of NASA's Lunar Prospector spacecraft into a crater near the south pole of the Moon on July 31 produced no observable signature of water, according to scientists digging through data from Earth- based observatories and spacecraft such as the Hubble Space Telescope.
		This lack of physical evidence leaves open the question of whether ancient cometary impacts delivered ice that remains buried in permanently shadowed regions of the Moon, as suggested by the large amounts of hydrogen measured indirectly from lunar orbit by Lunar Prospector during its main mapping mission.
		While the Moon's magnetic field is relatively weak, Prospector has confirmed the presence of local magnetic fields that create the two smallest magnetospheres in the Solar System.
	science.nasa.gov /newhome/headlines/ast13oct99_1.htm (1105 words)

	StarDate Online \| Image Gallery \| Space Probes & Human Exploration
		This image of the floor of Copernicus, a large crater of the Moon, was hailed as the "Photo of the Century" when it was published in late 1966.
		Surveyor 1 casts a long shadow across the Moon's Ocean of Storms as it nears the end of its first day on the lunar surface.
		It was the first American spacecraft to successfully land on the Moon.
	www.stardate.org /resources/gallery/gallery.php?start_round=10&total_found=102&Category=3000 (886 words)

	The Moon in Science Fiction
		Heinlein, Robert A. The Moon Is a Harsh Mistress.
		An astronaut crash-lands on the Moon and is determined to survive no matter what she has to do or how far she has to go.
		He concludes that the Moon is a gigantic egg, and that the chemical is causing it to hatch.
	www.biblioinfo.com /moon/sf_moon.html (8600 words)

	The Valley of Taurus-Littrow
		Elves (crater cluster) - "A field of small craters honoring all those who prepare the crew and their spacecraft for the journey." The center of the Elves cluster is about a kilometer north and bit west of the crater Mackin.
		Locke (crater)- "John Locke is representative of an age when interest grew in experimental science and observational philosophy as a substitute for the uncritical acceptance of the science and philosophy of the past." Cernan and Schmitt drove past Locke and the nearby crater Henry at the start of the third EVA.
		Snoopy (crater) - "Named for the sometime-aviator dog in Charles Schulz' Peanuts comic strip and the 'longtime' supporter of quality and humor in space exploration." Following the 1967 Apollo fire that took the lives of astronauts Grissom, Chaffee, and White, Snoopy became the symbol of the reinvigorated Apollo quality assurance program.
	www.hq.nasa.gov /office/pao/History/alsj/a17/a17.site.html (4559 words)

	Howstuffworks "How Telescopes Work"
		Like the moon, the sun is big, bright, and can be observed easily with a telescope, provided that you take the proper safety precautions.
		Finally, if you are very lucky, you could catch a glimpse of a solar flare if you observe a sunspot group near the sun's edge.
		A rare solar sight is that of a solar eclipse, when the moon passes between the Earth and the sun and blocks out the sun's disc.
	science.howstuffworks.com /telescope11.htm (508 words)

	SMART-1 Views Glushko Crater On The Moon
		The crater is attached to the western rim of Olbers crater was previously designated 'Olbers A' before being renamed in honour of Valentin Petrovitch Glushko, a Russian rocket scientist, by the International Astronomical Union.
		This crater possesses a relatively high albedo and is the focus of a prominent ray system that extends in all directions across the nearby surface.
		In the centre of the crater, there is a rough surface, in morphological terms somewhere in between the smooth 'bowl' shape seen in smaller craters, and the defined central peaks in craters larger than 60 kilometres.
	www.spacedaily.com /news/lunar-05zu.html (640 words)

	Galileo spacecraft passes North Pole of Moon (Peary Crater) December 7 in History
		Galileo spacecraft passes North Pole of Moon (Peary Crater) December 7 in History
		Galileo spacecraft passes North Pole of Moon (Peary Crater)
		It is bad enough that people are dying of AIDS, but no one should die of ignorance.
	www.brainyhistory.com /events/1992/december_7_1992_167600.html (52 words)

	Close-up color image of the orange soil at Shorty Crater on the Moon (Site not responding. Last check: 2007-10-24)
		Close-up color image of the orange soil at Shorty Crater on the Moon
		Apollo 17 surface photo showing orange soil discovered during the 2nd EVA near Shorty Crater at the Taurus-Littrow landing site on the Moon.
		Upon close examination on Earth, the soil was seen to contain many orange volcanic glass particles, giving it its distinctive color.
	wapi.isu.edu /Geo_Pgt/Mod06_Moon_a_b/A17_01x.htm (90 words)

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