Heads up! An asteroid the size of an office building will zoom close by Earth next week, but it's not on a collision course, NASA says. It will whiz past Earth on Feb. 15, going about 5 miles per second. At its closest approach, it will be only about 17,200 miles above the surface of our planet. That's far nearer to us than the moon, and even closer than some weather and communications satellites . But fear not ......... Its flight path is well-understood enough to know that there's no chance it will hit the Earth. Thank goodness!!!!
<a href="http://www.npr.org/2013/02/08/171412450/close-shave-asteroid-to-buzz-earth-next-week" >source</a>
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