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 …

6 days ago · NASA's interactive map for observing the Moon, every day of the year. All about humanity's return to the Moon. Like Earth, the Moon consists of three main layers: a crust, a mantle, and a core. …

3 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 …

Feb 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 · Check the Moon phase today with our live Moon Phase Tracker. See if it’s a Full Moon, New Moon, or Crescent in real time.

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 …

Find the Moon’s illumination, distance, and latitude for any time on any date. The Moon has four primary and four intermediate lunar phases during a lunar month. Here's all you need to know about each …

Jan 8, 2026 · Today's lunar phases, including the moon age and details such as moonrise and moonset. Discover when the moon will reach the full moon phase with a countdown timer.

May 23, 2023 · Learn how Earth's moon formed, how its orbit affects Earth's tides, why solar and lunar eclipses happen and the history of lunar exploration.

Below, find an interactive moon phase calculator showing lunar phases, illumination, moonrise/set times, and special moon events for any location worldwide. View a moon phase calendar or check specific …