NASA spacecraft will crash into an asteroid on purpose


CNEOS closely monitors all known near-Earth objects that could come within 1.3 astronomical units which translates to 1.3 times the distance between Earth and the Sun.

So far, 8,000 near-Earth asteroids with a diameter greater than 460 feet are being tracked. And a space rock this large could destroy an entire state if it has a direct hit on the U.S.

None of these objects are currently posing a direct threat to the Earth for decades. But a dangerous near-Earth object will potentially take decades to prepare for.

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