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Presently, the widely accepted theory about the formation process of the Moon is a giant impact between the early Earth and a celestial body the size of Mars, that threw out enough material in orbit that accreted in time to form our only natural satellite.However this hypothesis is not accepted by all the scientific... |
28 June 2007
04:16 GMT |
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The Hubble Space Telescope has recently sent some very impressive pictures of two of the largest known asteroids, showing the craters and other spectacular features on the two cosmic boulders, that will soon be explored in detail by NASA's Dawn spacecraft.Hubble is a telescope in orbit around the Earth, named a... |
21 June 2007
04:21 GMT |
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NASA's internal procedure for tracking potentially dangerous asteroids that could hit Earth and for countermeasures designed to deflect the space objects is deeply flawed and heavily criticized because it exaggerates the cost and difficulty of the program.The agency had one year to prepare plans for a survey th... |
22 May 2007
12:06 GMT |
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Asteroid Itokawa repeatedly shakes the booty; that's what the tiny pebbles on the near-Earth cosmic object show. Like a jiggled jar of mixed nuts, shaking on the near-Earth asteroid is sorting loose rock particles on its surface by size, causing the smallest grains to sink into depressions, a new study suggests... |
20 April 2007
03:08 GMT |
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A cosmic impact between two bodies resulted in a 200 mile-wide iron meteorite, the size of Lake Mead, behind Hoover Dam, left to chill out in space, and which produced roughly 60 smaller ones.It is believed that asteroidal bodies are just leftover debris from the collisions and subsequent melting that happens when p... |
19 April 2007
03:46 GMT |
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The space rock, dubbed 2006 VV2, came within 2.1million miles of hitting us - which is a near miss in space terms, even though that's about nine times farther away than the moon.The asteroid was flying past Earth on Friday night, at 11 p.m. (PDT), and on Saturday 7 a.m. GMT for Europe.There was no danger of col... |
2 April 2007
03:35 GMT |
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Early in the morning of June 30, 1908, in the Tunguska region of Siberia about 1,000 km (600 miles) north of Irkutsk, an asteroid about 60 meters (200 ft) in diameter entered the Earth's atmosphere, resulting in an immense explosion, centered about 8 km (5 miles) above the forest below. Trees were flattened ove... |
29 March 2007
03:46 GMT |
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Researchers have measured for the first time a slight force from sunlight that affects the spin rate of the asteroids, a characteristic useful in forecasting fine-tune long-term asteroid orbits and solves the mystery of the rear moonlet displayed by some asteroids. "Sunlight can make asteroids spin so fast they break... |
8 March 2007
06:31 GMT |
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