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The Moon is Earth's only natural satellite. It orbits at an average distance of 384,400 km (238,900 mi), about 30 times the diameter of Earth. Over time Earth's gravity has caused tidal locking, causing the same side of the Moon to always face Earth. Because of this, the lunar day and the lunar month are the same length, at 29.5 Earth days.
- Natural Satellite
The Moon orbiting around Earth (observed by the Deep Space...
- Moon (Disambiguation)
Celestial bodies. Natural satellite or moon (generic); Moon,...
- View Source
We would like to show you a description here but the site...
- Far Side of The Moon
Photograph of the far side of the Moon, with Mare Orientale...
- Origin of The Moon
Origin of the Moon. The Moon's heavily cratered far-side....
- Near Side of The Moon
The names of the major maria and some craters on the near...
- Tidal Locking
Tidal locking results in the Moon rotating about its axis in...
- Satellite Planet
Planetary-mass moons larger than Pluto, the largest Solar...
- List of Proposed Missions to The Moon
A replica of Luna 9, the first spacecraft to land on the...
- Orbit of The Moon
The Moon orbits Earth in the prograde direction and...
- Natural Satellite
Origin of the Moon. The Moon's heavily cratered far-side. The origin of the Moon is usually explained by a Mars-sized body striking the Earth, creating a debris ring that eventually collected into a single natural satellite, the Moon, but there are a number of variations on this giant-impact hypothesis, as well as alternative explanations, and ...
4 days ago · Moon, Earth ’s sole natural satellite and nearest large celestial body. Known since prehistoric times, it is the brightest object in the sky after the Sun. It is designated by the symbol ☽. Its name in English, like that of Earth, is of Germanic and Old English derivation.
- James D. Burke
Size and Distance. With a radius of about 1,080 miles (1,740 kilometers), the Moon is less than a third of the width of Earth. If Earth were the size of a nickel, the Moon would be about as big as a coffee bean. The Moon is an average of 238,855 miles (384,400 kilometers) away.
The Moon orbits Earth in the prograde direction and completes one revolution relative to the Vernal Equinox and the stars in about 27.32 days (a tropical month and sidereal month) and one revolution relative to the Sun in about 29.53 days (a synodic month).
Lunar phase. A full moon sets behind San Gorgonio Mountain in California on a midsummer's morning. A lunar phase or Moon phase is the apparent shape of the Moon 's directly sunlit portion as viewed from the Earth (because the Moon is tidally locked with the Earth, the same hemisphere is always facing the Earth).
The brightest and largest object in our night sky, the Moon makes Earth a more livable planet by moderating our home planet's wobble on its axis, leading to a relatively stable climate. It also causes tides, creating a rhythm that has guided humans for thousands of years.
