Observations Rule Out Asteroid Impact
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PASADENA, Calif. - Additional observations have ruled out the chance that a recently discovered asteroid, believed to be about 1,300 feet long, could hit Earth in 2029, NASA (news - web sites) scientists said.
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Will the Earth be destroyed by an asteroid that could hit the planet in 30 years? It's unlikely the asteroid Apophis will ever hit the planet, but scientists are tracking such near-Earth objects.
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Summary - (Dec 29, 2004) Astronomers have now ruled out the possibility that Asteroid 2004 MN4 will strike the Earth in April 2029.
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Tumbling through space like a fumbled football, a peanut-shaped asteroid named 4179 Toutatis is expected to pass within a million miles (1.6 million kilometers) of Earth on Wednesday.
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There have been a limited number of sightings of Asteroid 2004 MN4, which has been given a rating of 2 on the 10-point Torino Impact Hazard Scale used to predict asteroid or comet impacts.
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UK space scientists and engineers design a mission to investigate a potentially hazardous asteroid.
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By ALICIA CHANG  SAN FRANCISCO - Detailed observations from the first comet samples returned to Earth are debunking some of science's long-held beliefs on how the icy, celestial bodies form.
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The US spacecraft Dawn, due to launch on Sunday, will take a close look at two massive asteroids to try to penetrate the mystery of our solar system&#39;s origins 4.6 billion years ago.
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Telescopes spy the closest asteroid flyby ever recorded. Also: European astronomers find a 'super Earth' 300 trillion light years away.... and did DOS trickery foil the Spirit rover? By Amit Asaravala.
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The first direct evidence of the so-called YORP effect shows that heat from the sun can speed up or slow down an asteroid's spin, according to a trio of new studies.
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There&#39;s a 1-in-300 chance that a recently discovered asteroid, believed to be about 1,300 feet long, could hit Earth in 2029, a NASA scientist said last week, but he added that
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Astronomers have found plenty of double, or binary asteroids. Triples are known to exist, too (the first triple was found in 2005).
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The giant Toutatis asteroid passes by the Earth on Wednesday at distance of less than 1.6 million km. This is roughly four times the distance from the Earth to the Moon and closer than this 4.6km-wide rock has come to us since at least the 12th century.
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A new study of seabed sediments supports the idea that a single giant collision killed the dinosaurs, but supporters of multiple-impact theories remain unconvinced.
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An asteroid at least 500 feet long will make a rare close pass by Earth next week, but there is no chance of an impact, scientists reported Thursday.
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The asteroid belt&#39;s largest bodies have drifted virtually alone since their creation about 4.5 billion years ago, but each will soon receive a visit from NASA&#39;s Dawn spacecraft.&nbsp;
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The possibility of a collision between Mars and an approaching asteroid has been effectively ruled out, according to scientists watching the space rock.