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 …

4 days ago · 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.

8 hours ago · Live Updates: Artemis II Begins Return to Earth After Swinging Around Moon’s Far Side The four astronauts concluded a historic lunar flyby that included their greatest distance from the …

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

10 hours ago · Artemis II astronauts are making history as they travel farther from Earth than any humans in history and conduct a moon flyby.

6 days ago · 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 …

8 hours ago · There will be a temporary communications blackout as the spacecraft passes behind the moon, which is expected and planned. Follow for live updates.

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

Mar 31, 2026 · 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 of Earth, is of …

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...