We talked about the impact crater Tycho which is the bright one in the lower right quadrant of the picture...with lots of debris rays flowing outward from it. This is a sign that it is a younger crater with it's debris laying on top of older surface features.

The crater Copernicus is on the left central area...with a smaller debris field. It's surrounded by Darker colored surface features called Mare..which are magma flows from early in the moons formation.