Add Yahoo as a preferred source to see more of our stories on Google. March’s “worm moon” sets behind Rocca Calascio castle and village in L’Aquila, Italy. Photograph by Lorenzo Di Cola, ...

Learn the lunar cycle and 2026 moon phases, including new moon, full moon, and quarter phases. Discover dates, illumination, and tidal effects from NASA and Space.com.

The blood moon phase will be visible across swathes of North America before dawn on March 3.

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 ...