NASA catalogs thousands of asteroids near Earth

SAN FRANCISCO: About 1,000 asteroids big enough to cause catastrophic damage if they hit Earth are orbiting relatively nearby, a NASA survey shows. In a project known as Spaceguard, the U.S. space...

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AFP

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December 08, 2011

NASA catalogs thousands of asteroids near Earth

SAN FRANCISCO: About 1,000 asteroids big enough to cause catastrophic damage if they hit Earth are orbiting relatively nearby, a NASA survey shows.

In a project known as Spaceguard, the U.S. space agency was ordered by Congress in 1998 to find 90 percent of objects near Earth that are 1 km (0.62 of a mile) in diameter or larger.

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