The moon's surface is solid and rocky, covered with many small and large craters caused by impacts. The lunar surface also consists of mountains, massive rocks and cracks that may have formed from lava flow. The moon is also covered in a whitish-gray ground-up rock called regolith.
The surface on the moon is covered in large plains of basaltic lava. Surface features such as small cones and volcanic domes, dark mantling deposits and sinuous rilles are also present on the moon's surface. The atmosphere on the moon is referred to as an exosphere, and is too weak and thin to support life.