We love clocks, but we especially love unusual timepieces that aren’t just about showing the hour of the day. [Simone Giertz] built a flip clock moon phase tracker for a friend. While in Egypt for ...

Check today’s Moon phase and explore the full lunar calendar for 2025, showing each stage from new moon to full moon throughout the year.

Most animals, including humans, carry an internal lunar clock, tuned to the 29.5-day rhythm of the moon. It guides sleep, ...

The moon goes through a repeating cycle of phases each month, changing what we see every night. This is called the lunar cycle. The lunar cycle is a series of eight unique phases of the moon's ...

An unusual lunar event that happens only once every 33 months is occurring tonight — but you won’t be able to see it. A black moon will rise on Aug. 23 as the moon passes through its new moon phase at ...

We're a day away from the full moon, so let's see what's happening in the current lunar cycle. This is a series of eight unique phases of the moon's visibility. The whole cycle takes about 29.5 days, ...