- 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 wide as the contiguous United States)
- Earths Moon - Science@NASA
Like Earth, the Moon has a day side and a night side, which change as the Moon rotates The Sun always illuminates half of the Moon while the other half remains dark
- Moon | Features, Phases, Surface, Exploration, Facts | Britannica
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 of Earth, is of Germanic and Old English derivation
- The Moon: Our Satellite - timeanddate. com
A natural satellite, or moon, is a small body that orbits a larger one There are at least 200 known moons in the solar system, but most of these orbit one of the giant outer planets
- Everything you need to know about the Moon - Astronomy. com
The Moon is about one-fourth the size of Earth It's primarily composed of rock and minerals, with a small iron core The Moon's average distance from Earth is roughly 239,000 miles Lunar phases
- The Moon Page
Discover the moon like never before! Interactive moon phases, 3D moon exploration, moon landing history, and lunar calendar designed for children Learn about the moon through NASA missions and space exploration
- Facts About the Moon | National Geographic
We see the full moon when the sun is directly behind us, illuminating a full hemisphere of the moon when it is directly in front of us
- Moon 101 - National Geographic Society
What is the moon made of, and how did it form? Learn about the moon's violent origins, how its phases shaped the earliest calendars, and how humans first explored Earth's only natural satellite half a century ago
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