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 …

Nov 27, 2025 · 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 …

Sep 25, 2025 · The other side of the Moon is dark. The position of the Moon and the Sun during Each of the Moon’s phases and the Moon as it appears from Earth during each phase. Credit: …

5 hours ago · See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2025.

Sep 7, 2023 · 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 …

4 days ago · 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 …

18 hours ago · What is today’s moon phase? As of Thursday, Dec. 4, the moon phase is Full Moon. This means 100% of the moon is lit up tonight, according to NASA's Daily Moon …

Jun 25, 2025 · The Earth and Moon are tidally locked. Their rotations are so in sync we only see one side of the Moon. Humans didn't see the lunar far side until a Soviet spacecraft flew past …

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 …

Nov 24, 2025 · Space agencies around the world are planning moon missions that will depend on water ice for resources, but much remains unknown about its availability of water ice on the …