If we somehow get lucky and don't kill ourselves first, we're probably all going to die when a gigantic meteorite slams the crap out of our blue marble. Meteorites hit Earth more than you think! Since 2300 BC, you can see all the meteorites that have pockmarked Earth.
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Source: http://feeds.gawker.com/~r/gizmodo/full/~3/dhna_PJrKK8/here-is-a-map-that-shows-every-meteorite-that-has-hit-earth-since-2300-bc
STANDARD MICROSYSTEMS SRA INTERNATIONAL SPSS SPANSION
