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 …

Dec 17, 2025 · The Earth and Moon are tidally locked. Their rotations are so in sync we only see one side of the Moon. Humans didn't see the lunar far side until a Soviet spacecraft flew past in 1959. …

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.

Jan 3, 2026 · With our 2026 Moon Phase Calendar, you'll find the current Moon phase for tonight—plus, all the phases of the Moon for each day of the month.

Where is the Moon now? Discover its current position, coordinates, altitude, azimuth, and a sky map to easily find it in the sky from your location.

3 days ago · The rollout sets the stage for tests and dress rehearsals ahead of NASA's first crewed flight to the moon in more than 50 years. The mission could launch in three weeks.

Jan 13, 2026 · Particles from Earth’s atmosphere have been carried into space by solar wind and landing on the moon for billions of years, mixing into the lunar soil, according to a new study.

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 …

5 days ago · 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 …

3 days ago · Stargazers will in one week have a chance to spot Saturn and the moon sharing a section of the night sky in what's known as a conjunction.