Now a Christmas Eve asteroid wants to fill all our stockings with carbonaceous chondrites. The asteroid 163899, also known as 2003 SD220, will pass by Earth at a harmless distance of 6.7 million miles–that#39;s about 28 times as far as the moon. It#39;s a big asteroid, estimated to be between 0.5 and 1.5 miles wide, and it#39;s zooming around at about 5 miles per second. (Beat that, Rudolph.) When it passes by on Christmas Eve, you#39;ll need a telescope and some amateur astronomy experience
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Christmas Eve asteroid 2015 Pictures
