Moon's crust

The Moon's crust is the outermost solid layer, varying in thickness from about 20 to 70 kilometers. It is mainly composed of rocky materials called silicates, rich in minerals like feldspar and pyroxene. The crust is broken into large, rigid sections called tectonic plates, which have little movement. Its surface features include craters, mountains, and flat plains known as maria, formed by ancient volcanic activity. Unlike Earth's crust, the Moon's crust has no significant atmosphere or liquid water, making it a static, ancient shell that preserves its history since the Moon's formation billions of years ago.