As the Moon completes its cycles every month, its various phases present a rich tapestry for skywatchers and astronomy ...

Join us on a guided telescope tour of August's moon, featuring distinct targets for each of the four major lunar phases.

The moon's phases come in cycles, the most noteworthy being the so-called Metonic cycle that was independently discovered by the Greek astronomer Meton (who was born about 460 B.C.).

Can the full moon affect your sleep or mood? Here’s what we know ahead of August’s sturgeon moon – and how to look after ...

Moon phases are caused by the 29.5-day cycle of the moon’s orbit, which changes the angles between the Sun, Moon, and Earth. Moon phases are how the moon looks from Earth as it goes around us.

Moon phases are caused by the 29.5-day cycle of the moon’s orbit, which changes the angles between the Sun, Moon, and Earth. Moon phases are how the moon looks from Earth as it goes around us.