It slammed into the earth 50,000 years ago producing a massive explosion equivalent to a thermonuclear explosion 150 times stronger than the atomic bombs used at Hiroshima and Nagasaki. It's our picture of the day.

It looks like the next person on the moon may be someone a little older than usual. The European Space Agency is searching for a man or woman 45 years old or older to send into space. Will it be you?