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.

When sunlight passes through Earth's atmosphere, blue light scatters more easily while red light travels more directly through the air. During a lunar eclipse, some of the sunlight passes all the way through the Earth's atmosphere and reaches the moon's surface, giving it a subtle glow.

According to Dr. Angela Speck, a professor of astrophysics and department chair for physics and astronomy at The University of Texas at San Antonio, the "blood moon" total lunar eclipse was visible across the U.S. and no special equipment was necessary to view it.