"There's a bad moon on the rise"

In 3 days time, NASA's Lunar Reconnaissance Orbiter will mark its 1000th day in orbit. To toast this milestone, NASA has put together a short video depicting what we think has been going on for the last 4.5 billion years or so since the Moon first formed. It show very clearly how violent have been the processes that formed our largest satellite as we know and love it today!