Moon - Wikipedia
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 …
Moon Facts - NASA Science
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 Phases Calendar: What's the Moon Phase Today?
Dec 4, 2025 · What is the Moon Phase today? Use our 2023 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 …
The moon Coverage | Space
Dec 15, 2025 · Research shows a full moon can modestly affect sleep, but its influence on mental health is much less certain.
Moon 101 - National Geographic Society
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 …
Moon | Features, Phases, Surface, Exploration, & Facts | Britannica
Dec 20, 2025 · 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 …
Today's Moon Phase for Ashburn, Virginia, United States
3 days ago · Get today's moonrise, moonset, moon age, moon distance, moon tonight for Ashburn.
2026 set to be the year NASA astronauts fly around the moon again
22 hours ago · If all goes according to NASA’s plans, 2026 will finally be the year that astronauts once again launch to the moon. In a matter of months, four astronauts are poised to fly around the moon …
Earth's Moon - Science@NASA
Dec 17, 2025 · Like Earth, the Moon has a day side and a night side, which change as the Moon rotates. The Sun always illuminates half of the Moon while the other half remains dark.
Moon - Formation, Craters, Orbit | Britannica
Dec 14, 2025 · Most effort hitherto had been devoted to understanding the movements of the Moon through space, but now astronomers began to focus their attention on the character of the Moon itself.