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 …

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.

Jan 29, 2026 · 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.

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.

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...

Time for sunrise, sunset, moonrise, and moonset in La Crosse – Wisconsin – USA. Dawn and dusk (twilight) times and Sun and Moon position. Takes into account Daylight Saving Time (DST).

Jul 16, 2004 · We see the full moon when the sun is directly behind us, illuminating a full hemisphere of the moon when it is directly in front of us.

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 …

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 …

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.