Moon - Wikipedia
In geophysical terms, the Moon is a planetary-mass object or satellite planet. Its mass is 1.2% that of the Earth, and its diameter is 3,474 km (2,159 mi), roughly one-quarter of Earth's (about as …
Moon | Features, Phases, Surface, Exploration, & Facts ...
2 days ago · Moon, Earth’s sole natural satellite and nearest celestial body. Known since prehistoric times, it is the brightest object in the sky after the Sun. Its name in English, like that …
Moon Facts - NASA Science
As the Moon orbits Earth, different parts are in sunlight or darkness at different times. The changing illumination is why, from our perspective, the Moon goes through phases. During a …
Earth's Moon - Science@NASA
The Moon makes Earth more livable, sets the rhythm of ocean tides, and keeps a record of our solar system's history.
Moon | Glenn Research Center | NASA
Nov 22, 2023 · The Moon completes an orbit of the Earth every 27.3 days (approximately 655 hours). The Moon also rotates on its axis. Because of tidal forces, it completes one revolution …
In Depth | Earth's Moon – NASA Solar System Exploration
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 …
All About the Moon | NASA Space Place – NASA Science for Kids
Jan 2, 2025 · Earth has just one moon – a rocky, cratered place, roughly a quarter the size of Earth and an average of 238,855 miles away. The Moon can be seen with the naked eye most …
Moon Phases - NASA Science
Sometimes the Moon seems to disappear. These shifts are called moon phases. The eight lunar phases are, in order: new moon, waxing crescent, first quarter, waxing gibbous, full moon, …
The moon — A complete guide to Earth's companion | Space
May 23, 2023 · Learn how Earth's moon formed, how its orbit affects Earth's tides, why solar and lunar eclipses happen and the history of lunar exploration.
Everything you need to know about the Moon | Astronomy.com
Sep 7, 2023 · The Moon is Earth’s only permanent natural satellite, and it’s the fifth-largest satellite in our solar system.