Solar System/Moon
Size
The Moon's diameter is 3476 kilometers, or 0.2764 times that of Earth. This makes the Moon far larger relative to its planet than any other planetary moon in the solar system. In absolute terms it is the fifth largest planetary satellite in the solar system.
Physical characteristics
The surface
The maria and terrae
The enigma of the craters
Water in the craters
Seismology
Moonquakes
Internal structure
Magnetism
Atmosphere
Origin and evolution
Large impact hypothesis
The large impact hypothesis is a theory that states that the Moon was formed when a Mars sized protoplanet collided with the Earth during the Hadean eon of the Earth, with the debris from the impact accreting into the moon. The named of the mars sized protoplanet is usually given as Theia. It is the most widely accepted hypothesis for the formation of the moon.
Age of the Moon
The Conquest Of The Moon
