Things that go BOOM from space.
Ideas and Trends - Maybe Chicken Little Wasn’t Paranoid After All - NYTimes.com
Maybe Chicken Little Wasn’t Paranoid After All
By ANDREW C. REVKIN
Published: July 6, 2008
THE Earth is pockmarked with the evidence of ancient collisions — huge craters blasted into its surface by asteroids or comets. One such object, striking 65 million years ago in the Yucatán in Mexico, is believed by some experts to be linked to the demise of the dinosaurs.
LEVELED The result of a blast believed to have been caused by a meteoroid 100 years ago.
For a decade, NASA has been busy trying to identify what else is headed this way, particularly those potential “civilization killers” of 1 kilometer (.62 miles) or more in diameter that have orbits coming within 30 million miles of the Earth’s — too close for comfort by space standards.
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