The usual English proper name for Earth's natural satellite is simply Moon, with a capital M. The noun moon is derived from Old English mōna, which (like all its Germanic cognates) … See more

The Moon is a very slightly scalene ellipsoid due to tidal stretching, with its long axis displaced 30° from facing the Earth, due to … See more

The Moon's highest altitude at culmination varies by its lunar phase, or more correctly its orbital position, and time of the year, or more correctly the position of the Earth's axis. The full moon is highest in the sky during winter and lowest during summer (for each … See more

Pre-telescopic observation (before 1609)
It is believed by some that the oldest cave paintings from up to 40,000 BP of bulls and geometric shapes, or 20–30,000 year old tally sticks were used to observe the phases of the Moon, keeping time using the waxing and … See more

Lunar geologic timescale
The lunar geological periods are named after their characteristic features, from most See more

Orbit
The Earth and the Moon form the Earth-Moon satellite system with a shared center of mass, or barycenter. This barycenter is 1,700 km (1,100 mi) (about a quarter of Earth's radius) beneath the Earth's surface. See more

Humans last landed on the Moon during the Apollo Program, a series of crewed exploration missions carried out from 1969 to 1972. Lunar orbit has seen uninterrupted presence of orbiters since 2006, performing mainly lunar observation and providing … See more