The Moon makes Earth more livable, sets the rhythm of ocean tides, and keeps a record of our solar system's history. Explore NASA lunar science here.
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).
Track the moon phase today with our interactive moon phase calculator. Get details on the current moon phase and the next full moon date.
Moon phases for 2026 or any year. New Moon and Full Moon calendar with precise times and simulation of the Moon phase today. When is the next Full Moon?
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. Did You Know?
Track the moon live and explore a beautiful 3D sky with constellations, planets, and visibility layers. PWA.
Find My Moon — Real-time Moon Phase & 3D Sky | findmymoon.app
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.
Reference See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2026. The Artemis 2 astronauts captured a unique image of the moon's "dark side" during ...