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 ...

Assuming you’re not stuck in a prison cell without windows, you could feasibly keep track of the moon and tides by walking outside and jotting things down in your notebook. Alternatively, you could ...

Earth's Moon, the planet's only natural satellite, is so close that you can see some of its surface features with the naked eye—but only when it's at least partially illuminated by the Sun. In this ...

While orbiting Earth, the moon undergoes a series of phases, each marked by its unique appearance in the sky The moon has captivated humanity since the beginning of time, but what deeper significance ...

What is the moon phase today? Today, Dec. 31, 2025, the moon is 11 days old and is in the Waxing Gibbous phase of its lunar cycle. It is 91% illuminated. Moon phase Date Full Moon Dec. 4 Third/Last ...