March’s “worm moon” sets behind Rocca Calascio castle and village in L’Aquila, Italy. Photograph by Lorenzo Di Cola, NurPhoto/Getty Images Earth’s moon phases cycle from month to month, waning and ...

Discover what a new moon is and when the next new moon will occur with our new moon 2025 guide.

Add Yahoo as a preferred source to see more of our stories on Google. Moon phases reveal the passage of time in the night sky. Some nights when we look up at the moon, it is full and bright; sometimes ...

Most of us notice the moon changing shape in the sky, but most people don’t ever stop to think about why it happens (except maybe the science geeks among us). Of course, those changing shapes in the ...

What is the moon phase today? Today, Dec. 29, 2025, the moon is 9 days old and is in the Waxing Gibbous phase of its lunar cycle. It is 74% illuminated. Moon phase Date Full Moon Dec. 4 Third/Last ...