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  1. Moon - Wikipedia

    The Moon is Earth's only natural satellite. It orbits around Earth at an average distance of 384 399 km (238,854 mi; about 30 times Earth's diameter). The Moon rotates, but keeps facing Earth …

  2. Earth's Moon - Science@NASA

    Apr 8, 2025 · Earth’s Moon is thought to have formed in a tremendous collision. Ancient ice hidden deep in permanently shadowed craters. H20 molecules on the sunlit lunar surface. …

  3. Moon Facts - Science@NASA

    Apr 8, 2025 · 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. …

  4. Moon Phases - NASA Science

    6 days ago · The eight lunar phases are, in order: new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, and waning crescent. The cycle …

  5. In Depth | Earth's MoonNASA 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 …

  6. Moon - Simple English Wikipedia, the free encyclopedia

    The Moon is Earth's only natural satellite (the only object which orbits the Earth and is not man-made). It is usually visible in the night sky, but is sometimes seen during the day. The Moon is …

  7. All About the Moon | NASA Space Place – NASA Science for Kids

    Jun 5, 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 …

  8. The moon: Facts about our planet's lunar companion

    May 23, 2025 · Discover interesting facts about how the moon formed, what it's made out of, and the many missions humans have launched to explore it. The moon is our constant companion …

  9. How Big Is the Moon? - Encyclopedia Britannica

    Jun 6, 2025 · The Moon is a spherical rocky body with a mean equatorial radius of approximately 1,738 kilometers (1,080 miles) and a diameter of roughly 3,476 kilometers (2,160 miles). In …

  10. 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 …

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