WASHINGTON - An asteroid about half the length of a football field will pass very close to Earth on Feb. 15.
It's called Asteroid 2012 DA-14 and will pass within 17,200 miles of Earth, roughly one-tenth the distance between Earth and moon.
It's a record-close approach for an object of that size, NASA says.
NASA says there's no chance the asteroid will hit earth.
Here's a NASA animation of the asteroid's trajectory:
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