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 …

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 …

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. …

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.

Dec 5, 2024 · A moon is an object that orbits a planet or something else that is not a star. Besides planets, moons can circle dwarf planets, large asteroids, and other bodies. Objects that orbit other …

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.

A "space race" between the United States of America and the Soviet Union ensued in the following decade, culminating in the landing of two American astronauts, Neil Armstrong and Buzz Aldrin, on …

5 days ago · Sunrise and sunset in Lewis Center, Ohio as well as day length, twilight and solar noon for every day of the year.

The Moon, also known as Luna, is Earth 's only natural satellite (the only object which orbits the Earth and is not man-made). It is usually visible in the night sky, but is sometimes seen during the day.

6 days ago · NASA's Artemis 2 mission will send four astronauts on a 10-day journey around the moon. The mission is the first U.S. human moon mission in over 50 years and part of a larger plan to …