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Harzardous Asteroids

How Do Researchers Track Near-Earth Asteroids?

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Later today, an asteroid designated 2012 DA14 will pass just 17,200 miles over Earth’s surface. Although this 150-foot space rock will slip harmlessly by, researchers estimate there are nearly 500,000 near-Earth asteroids. So far, they’ve tracked the orbit of 9,600. How do researchers track asteroids, anyway? A Science Bulletins video explains more about the process, and more about the odds of an asteroid collision with Earth.

Tags: Meteorites, Science Bulletins

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