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Latest Impact crater Stories

Moon: Light Side or Dark?
2012-10-30 19:44:18

Lee Rannals for redOrbit.com — Your Universe Online Researchers are saying the massive dark spot seen on the moon, known as the Ocean of Storms, is a scar from a giant cosmic impact. The team of Japanese scientists says the giant cosmic impact created a magma sea more than a thousand miles wide and several hundred miles deep. The findings may be able to help explain why the moon's near and far sides are so different from one another. The side of the moon that faces Earth has...

Moon Formation - Evidence Backs Up Giant Impact Theory
2012-10-17 14:15:54

[ Watch the Video: What is the Moon? ] | [ Watch the Video: Planetary Demolition Derby ] Lee Rannals for redOrbit.com - Your Universe Online Scientists are backing up a theory, claiming that the Moon was created when a planetary body the size of Mars collided with Earth. Planetary scientists found evidence that backs up the Giant Impact Theory, which was first proposed at a conference in 1975. The Giant Impact Theory says that Earth´s moon was created in an apocalyptic...

Ancient Asteroid Crater Discovered
2012-06-29 14:19:28

DM Crumbliss for redOrbit.com — Your Universe Online Asteroid impact craters are found all over the Earth, but most are erased by erosion or covered by time. The date has moved a billion years back by the discovery of the oldest impact crater yet at 3 billion years old. The crater is 100 kilometers wide and is the result of an asteroid or comet impact. The crater was discovered near the Maniitsoq region of West Greenland by a team of scientists from the Geological Survey of...

Image 1 - New Research Reveals Details About Earth's Asteroid Impacts
2012-04-25 13:53:40

Lee Rannals for RedOrbit.com Researchers are reporting in the journal Nature that tiny "spherules" embedded in layers of rock have given them details about Earth's asteroid impacts. According to the team, the spherules were created when asteroids crashed into the Earth, vaporizing rock that expanded into space as a giant vapor plume. Small droplets of molten and vaporized rock in the plume then condensed and solidified, falling back to Earth as a thin layer.  These particles...

Asteroid Craters On Earth Give Clues In Search For Life On Mars
2012-04-18 03:09:30

Craters made by asteroid impacts may be the best place to look for signs of life on other planets, a study suggests. Tiny organisms have been discovered thriving deep underneath a site in the US where an asteroid crashed some 35 million years ago. Scientists believe that the organisms are evidence that such craters provide refuge for microbes, sheltering them from the effects of the changing seasons and events such as global warming or ice ages. The study suggests that crater sites...

2012-03-15 12:12:53

In honor of 1,000 days in orbit, the NASA Lunar Reconnaissance Orbiter (LRO) team at NASA Goddard Space Flight Center in Greenbelt Md. has released two new videos. One video takes viewers through the moon's evolutionary history, and reveals how it came to appear the way it does today. Another video gives viewers a guided tour of prominent locations on the moon's surface, compiled by the spacecraft's observations of the moon. "Evolution of the Moon" explains why the moon did not always...

Image 1 - Meteorite Shockwaves Cause Martian Dust Avalanches
2011-12-17 05:00:03

Dust avalanches around impact craters on Mars appear to be the result of the shock wave preceding the actual impact, according to a study led by an undergraduate student at the UA When a meteorite careens toward the dusty surface of the Red Planet, it kicks up dust and can cause avalanching even before the rock from outer space hits the ground, a research team led by an undergraduate student at the University of Arizona has discovered. "We expected that some of the streaks of dust that...

Image 1 - Strange Hollows Discovered On Mercury
2011-10-25 04:10:27

[ Watch the Video ] NASA's MESSENGER spacecraft has discovered strange hollows on the surface of Mercury. Images taken from orbit reveal thousands of peculiar depressions at a variety of longitudes and latitudes, ranging in size from 60 feet to over a mile across and 60 to 120 feet deep. No one knows how they got there. "These hollows were a major surprise," says David Blewett, science team member from the Johns Hopkins University Applied Physics Laboratory. "We've been thinking of...

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2010-11-04 06:00:00

Scientists at Purdue University and Imperial College London have revised their popular "ËœImpact Effects Calculator', which allows anyone to calculate the potential damage a comet or asteroid would cause if it collided with the Earth. The interactive tool, available at http://www.purdue.edu/impactearth, lets users enter in specific details about the hypothetical impactor, such as its diameter and density, velocity, angle of entry and where it will hit the Earth. It then estimates...

2010-09-16 13:00:00

GREENBELT, Md., Sept. 16 /PRNewswire-USNewswire/ -- The moon was bombarded by two distinct populations of asteroids or comets in its youth, and its surface is more complex than previously thought, according to new results from NASA's Lunar Reconnaissance Orbiter (LRO) spacecraft featured in three papers appearing in the Sept. 17 issue of Science. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) In the first...


Latest Impact crater Reference Libraries

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2004-10-19 04:45:41

Saturn's moon Mimas -- Mimas is a moon of Saturn that was discovered in 1789 by William Herschel. Mimas' low density (1.17) indicates that it is composed mostly of water ice with only a small amount of rock. Mimas' most distinctive feature is a colossal impact crater 130 km across, named Herschel after the moon's discoverer. Herschel covers almost 1/3 of the diameter of the entire moon; its walls are approximately 5 km high, parts of its floor measure 10 km deep, and its central peak...

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2004-10-19 04:45:40

Jupiter's Moon Callisto -- With a diameter of over 4,800 km (2,985 miles), Callisto is the third largest satellite in the solar system and is almost the size of Mercury. Callisto is the outermost of the Galilean satellites, and orbits beyonds Jupiter's main radiation belts. It has the lowest density of the Galilean satellites (1.86 grams/cubic centimeter). Its interior is probably similar to Ganymede except the inner rocky core is smaller, and this core is surrounded by a large icy...

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