Eclipse.

[icebluenothing]

"The Church says the Earth is flat, but I know that it is round, for I have seen the shadow on the moon, and I have more faith in a shadow than in the Church." -- Robert Green Ingersoll

Total lunar eclipse tonight (well, tomorrow morning, if you want to be technical):

http://www.skyandtelescope.com/observing/home/9282371.html