U.S. Summons Experts to Draft Asteroid Defense Plan

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"I think Mother Nature has given us yet another wake-up call," says Donald K. Yeomans of NASA. "Objects the size of 2002 EM7 pass as close as this one did every two weeks or so. We just haven't found them all yet."

Another scare occurred in January, when a 1,000-foot-diameter (300-meter) asteroid came within 375,000 miles (600,000 kilometers) of Earth. Astronomers detected the mountain-sized rock only a few weeks earlier.

Astronomers are detecting more and more asteroids that sped by unnoticed in the past.

Copyright 2002 The Cincinnati Post

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