Fast Facts: The Moon

Fast Facts: The Moon
Age About the same age as Earth: 4.5 billion years
Location Solar system
Avg. distance from Earth 384,400 km (238,900 miles)
Diameter 3476 km (2160 miles)
Orbital period around Earth 27 Earth days
Mass 7.35 x 1022 kg
Distinguishing features The Moon has no atmosphere or magnetic field. Most rocks on the surface of the Moon seem to be between 4.5 and 3 billion years old, older than those usually found on Earth. Thus the Moon provides evidence about the early history of our solar system.
The Moon
The heavily cratered surface of Earth's moon (image courtesy of NASA)

Fast Facts: The Moon