Beware the Asteroids

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The Orbits of Potentially Harmful Asteroids

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Pictured above are the orbits of the over 1,000 known Potentially Hazardous Asteroids (PHAs). These documented tumbling boulders of rock and ice are over 140 meters across and will pass within 7.5 million kilometers of Earth -- about 20 times the distance to the Moon. Although none of them will strike the Earth in the next 100 years -- not all PHAs have been discovered, and past 100 years, many orbits become hard to predict.
See more at NASA

Asteroids Can Text?

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Going to Wrangle Some Asteroids

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Neil deGrasse Tyson Talks Asteroids & Hollywood

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And That's How "Armageddon" Was Made

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"Armageddon" Can Be Real!

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