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 …

Mar 18, 2026 · 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.

Apr 1, 2026 · Use our Moon Phase Calendar to find dates and times of the full Moon, new Moon, and every phase in between. Beyond the phases of the Moon, you will also see daily Moon illumination …

Track the moon phase today with our interactive moon phase calculator. Get details on the current moon phase and the next full moon date.

Explore the current phase of the moon, its rise and set times, nightly motion across the sky, and discover lunar features with our interactive map. Stay informed about the celestial movements above.

Jan 23, 2026 · Learn about Moon phases and see our Moon Phase Calendar here. Enter your location to find your local moonrise and moonset ...

Sep 7, 2023 · How big is the Moon? The Moon is Earth’s only permanent natural satellite, and it’s the fifth-largest satellite in our solar system. The Moon’s diameter is approximately 2,160 miles (3,475...

The Moon: Complete and live astronomy data, visibility information, sky charts, graphs, and tools for sky-watchers at all levels.

Combine with Moon Phase Tracker: Knowing the moon phase tonight along with the exact moonrise and moonset times gives a complete lunar picture. Full moons are spectacular, but crescent moons can …

5 hours ago · Follow live coverage of NASA's Artemis II mission splashdown. Get the latest news and see what time to watch as astronauts return from the record-breaking moon mission.