Question

Characteristics of the moon's surface

Answer 1

The moon's surface is covered with dead volcanoes, impact craters, and lava flows, some visible to the unaided stargazer.The crust of the moon is made up of concrete-like regolith. As asteroids and meteorites collide with the surface, they blast it into fine pieces that capture imprints (such as Neil Armstrong's famous footprint) in exceptional detail.

Under the surface

Like the Earth, the moon boasts a crust, mantle and core. Deep inside of its interior, the moon may have a solid iron core surrounded by a softer, somewhat molten liquid iron outer core. The outer core may extend as far out as 310 miles (500 km). But the small inner core only makes up about 20 percent of the moon, compared to the 50 percent core of other rocky bodies.

Most of the interior of the moon is made up of the lithosphere, which is about 620 miles (1,000 km) thick. As this region melted early in the lunar life, it supplied the magma necessary to create lava plains on the surface. However, over time, the magma cooled and solidified, thus ending volcanism on the moon.

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