Moon craters are large, bowl-shaped depressions found on the surface of the Moon. They are formed primarily by the impact of meteoroids, asteroids, and comets colliding with the lunar surface. When these objects strike, they create a shock wave that excavates material, resulting in a crater. The size of the craters can vary greatly, from small pits to massive basins. Many craters on the Moon are named after famous scientists and explorers. Some well-known examples include Tycho, which is easily visible from Earth, and Copernicus, known for its prominent rays. These craters provide valuable information about the history of the Moon and the solar system.