Part of Hall of the Universe.
AMNH/D. Finnin
Many forces shape the solid surfaces of planets and moons. Initially hot, some of these surfaces fractured as they cooled, creating great chasms. Impacts produce craters and can release molten flows beneath the surface. On Earth, continental plates move continuously, forming ocean basins and mountains. Water, ice, wind, and volcanoes both erode and create surface features.
Universality
planets and processes
Many of the physical processes that operate on Earth are found throughout the solar system. The same laws of physics apply to planets, stars, and galaxies throughout the universe.
Surfaces
Many forces shape the solid surfaces of planets and moons. Initially hot, some of these surfaces fractured as they cooled, creating great chasms. Impacts produce craters and can release molten flows beneath the surface. On Earth, continental plates move continuously, forming ocean basins and mountains. Water, ice, wind, and volcanoes both erode and create surface features.