by Caitlin Dickson
This Tuesday, around 6:30 pm, a quarter-mile wide asteroid will graze our fair planet at 201,700 miles. Though this distance—in which you could circle the globe more than eight times—may seem too great to be significant, it’s actually the closest an asteroid has come to the earth in decades. It’s also the largest asteroid that scientists have spotted before it arrived. Scientists are giddy about the closely-approaching rock, taking advantage of its proximity to track its movement and study its makeup. Unfortunately, amateur astronomers may have a difficult time spotting the space stone, as its presumably carbon-rich surface is very dark. In anticipation of the coming asteroid, which NASA scientists are certain won’t make contact with, we look back on some of the scariest and strangest things that have fallen from space.