geology of the Moon

The Moon's geology is characterized by its surface features, including plains called "maria," which are formed by ancient volcanic activity, and highlands that are older and more cratered. The Moon lacks an atmosphere, so its surface is marked by impact craters from celestial bodies. The Moon's crust is primarily made of basalt and anorthosite. Its core is small and partially molten. Studies of lunar rocks, returned by Apollo missions, reveal a history of volcanic activity and impact events, enhancing our understanding of both the Moon and the early solar system.