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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.
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Learn about Earth's Moon, its origin, phases, weather, and more from NASA. Discover how the Moon affects our planet and solar system, and explore its history and future missions.
14 de mar. de 2012 · 783K views 2 years ago. Although the moon has remained largely unchanged during human history, our understanding of it and how it has evolved over time has evolved dramatically.
Hace 3 días · 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.
Learn how the Sun's light creates moon phases as the Moon orbits Earth, and how the Moon's orbit and tilt affect its appearance. Explore the Moon's phases, libration, and earthshine with interactive maps and animations.
Learn how the Moon orbits Earth, why we only see one side of it, and how its tilt affects eclipses. Explore the Moon's features, history, and missions with NASA's videos and resources.
