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 …

Mar 18, 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.

Apr 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 …

Track the moon phase today with our interactive moon phase calculator. Get details on the current moon phase and the next full moon date.

2 days ago · Highlights From NASA’s Artemis II Moon Mission Splashdown The crew of three Americans and one Canadian are to return to Houston on Saturday after concluding a journey that sent humans …

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.

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 …

Apr 1, 2026 · Meet the astronauts who ventured around the Moon on Artemis II, the first crewed flight aboard NASA’s human deep space capabilities, paving the way for future lunar surface missions.

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...

1 day ago · Artemis II's moon-traveling astronauts are back home and feted to a thunderous welcome. Still marveling over their record-breaking lunar fly-around, the crew of four flew to Houston's Ellington …