A total lunar eclipse will make the moon appear red across the Western Hemisphere during the "Blood Worm Moon" this week.

Earth’s shadow will block most of the light that illuminates the lunar surface, creating what is known as a blood moon.

A rare blood moon lunar eclipse — which hasn’t happened in the U.S. since 2022 — was visible for skywatchers across most of North and South America, as well as the west side of Africa and Europe, the eastern parts of Australia and Russia and northern Japan.