Apollo Basin: Mare in a Sea of Highlands

This high resolution image taken by NASA Lunar Reconnaissance Orbiter shows the floor of the Apollo Basin, a large 538 km diameter double-ringed impact crater in the southern hemisphere of the far side.

This high resolution image taken by NASA Lunar Reconnaissance Orbiter shows the floor of the Apollo Basin, a large 538 km diameter double-ringed impact crater in the southern hemisphere of the far side.