Evolution of the Moon

From year to year, the Moon never seems to change. Craters and other formations appear to be permanent now, but the moon didn't always look like this. So, for understand how was the evolution of our natural satellite over time, see the following video from NASA's Lunar Reconnaissance Orbiter.

Source:
NASA, GODDARD SPACE FLIGHT CENTER - http://svs.gsfc.nasa.gov/vis/a010000/a010900/a010930/