The moon phase today is calculated in real time using high-precision astronomical algorithms verified against NASA lunar ephemeris data. The calculator above shows current illumination, moonrise and moonset times for your location, lunar age in days, and the date of the next Full Moon. Use it to plan fishing and hunting trips around peak moonlight, or explore our lunar astrology section for ...

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 contiguous United States).

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.

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 Germanic and Old English derivation.

New Moon and Full Moon calendar with precise times and simulation of the Moon phase today. When is the next Full Moon?

Explore the current phase of the moon, its rise and set times, nightly motion across the sky, and discover lunar features with our interactive map. Stay informed about the celestial movements above.

The ongoing military conflict regarding Iran and the Strait of Hormuz may well mirror a future situation off-Earth — the use of cislunar space, the region between the moon and our planet.