Why will the moon be shades of red, orange and yellow tonight? Here's what causes a "Blood Moon."

Those who glance up at the sky tonight will have an opportunity to catch the March 2025 "Blood Moon," a phenomenon that colors the full moon in shades of red, orange and yellow during a total lunar eclipse.

This month's full moon is due to pass through the shadow of Earth either late tonight, March 13, or very early tomorrow morning, March 14, depending on the viewer's time zone. It should be visible to people in the Americas and elsewhere in the Western Hemisphere.

Dubbed the "Worm Moon" by the Farmer's Almanac, which has been assigning names to full moons for almost a century, this one is expected to start taking shape Wednesday evening and is supposed to last through Saturday morning, according to NASA. The full moon will technically rise in its totality early Friday.