Asteroids
Asteroids are small bodies in space—the numerous leftover planetesimals from which the planets were made nearly 4.6 billion years ago. Most are in the "main belt," which...
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Small Bodies
For much of history, the solar system was thought to consist of large objects: Earth, the Moon, the Sun, and other planets. However, within the last two centuries astronomers have discove...
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Asteroids
Asteroids are rocky material left over from the formation of the solar system that orbit the Sun, but are too small to be
Asteroid 243 Ida and its moon, photograph. Corbis Corporation. R...
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Asteroid
Johannes Kepler was the first to postulate the existence of a hidden planet between Mars and Jupiter, a theory long pondered by astronomers. Then, in 1766, Johannes Titius (1729-1796), a prof...
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A piece of outer space named for George Takei is in kind of a rough neighborhood for somebody who steers a starship: an asteroid belt.An asteroid between Mars and Jupiter has been renamed 7307 Take...
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NASA astronaut and former University of Hawaii solar physicist Edward Lu is calling for a new spacecraft that would divert asteroids on a path to slam into Earth.The small space tractor, costing be...
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NASA this weekend is set to launch a spacecraft that will journey to the asteroid belt that lies between Mars and Jupiter, a mission that involves a rendezvous with two of the solar system's larges...
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NASA officials say the space agency is capable of finding nearly all the asteroids that might pose a devastating hit to Earth, but there isn't enough money to pay for the task so it won't get done....
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NASA took aim at the heart of the asteroid belt Thursday, launching a spacecraft on a nearly decade-long journey that will include two never-before-attempted close encounters.The scientific probe D...
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An asteroid that exploded over Siberia a century ago, leaving 800 square miles of scorched or blown down trees, wasn't nearly as large as previously thought, a researcher concludes, suggesting a gr...
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The chance of a football field-sized asteroid plowing into Mars next month has been increased to 4 percent, scientists said Friday after analyzing archival data.Though still a long shot, some resea...
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Mars could be in for an asteroid hit. A newly discovered hunk of space rock has a 1 in 75 chance of slamming into the Red Planet on Jan. 30, scientists said Thursday."These odds are extremely unusu...
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Washington (dpa) - The idea of an asteroid impacting Earth has
long preoccupied science-fiction writers.
But the US space programme, NASA, also takes the threat seri...
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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.The object, known as 2007 TU24, is expected to w...
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Asteroids
Asteroids
Asteroid
Asteroid named for `Star Trek' actor
