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 …

Apr 29, 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.

9 hours ago · Current moon phase, including information about its position, illumination, moonrise, and moonset.

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

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.

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 satellite half a …

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...

Moon Phase for today and tonight with current lunar phase, illumination percentage and Moons age. Find out what the Moon Phase is on any other day of the year.

1 day ago · NASA released more than 12,000 new photos from the Artemis II moon mission. See the stunning images from the lunar journey.

1 day ago · The four primary phases of the moon (new moon, first quarter, full moon, last quarter) occur about a week apart, with the full moon its most dazzling stage.