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 …

6 天之前 · 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 …

3 天之前 · Earth’s Moon: Overview The Moon makes Earth more livable by moderating our home planet’s wobble on its axis, leading to a relatively stable climate. It also causes tides, creating …

2024年12月3日 · Earth's Moon records evidence of our solar system's history in the form of impact craters, cooled lava landforms, ancient ice deposits, and more.

2025年1月14日 · 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 …

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 …

2023年11月22日 · It orbits the Earth at an average distance of approximately 240,000 miles (384,000 km). The Moon completes an orbit of the Earth every 27.3 days (approximately 655 …

2023年5月23日 · 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.

2025年1月17日 · 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 …

2019年7月3日 · 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.