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, ...

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, ...

An image of a full moon. - Photo by Omer Tarsuslu/Anadolu via Getty Images We're approaching the end of this lunar cycle, and the moon is nearly completely out of view. We're on day 27 of the lunar ...

Researchers propose that humans may still have an internal Moon clock, but its coupling to lunar phases is dimmed by ...