Skywatchers across the world will witness the first total lunar eclipse in three years. Here’s who will have the best views—and what gives the moon its eerie red tint.

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.

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