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.

1 day ago · The Artemis II crew flew farther from Earth than any humans in history as they passed over the far side of the moon on Monday night.

1 day ago · NASA's Artemis II astronauts swung around the moon in their Orion spacecraft on Monday, coming within 4,067 miles of the lunar surface.

1 day ago · The NASA-led Artemis II mission, carrying a four-person crew beyond Earth orbit for the first time since 1972, conducted a seven-hour flyby of the moon.

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 …

1 day ago · As they traveled back toward Earth following a solar eclipse and a communications blackout, President Trump called the space capsule to praise the four astronauts on their success.

1 day ago · The four crew members of Artemis II set a distance record for humanity as they flew beyond the lunar surface, over 250,000 miles from Earth.

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

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...