On March 13-14, 2025, skywatchers in the Americas will witness a total lunar eclipse that mirrors one Christopher Columbus is said to have used to his advantage over five centuries ago.
A total lunar eclipse is about to turn the moon blood red for the first time in two years. Overnight Thursday, watch Earth's shadow swallow the moon.
A blood moon occurs when the moon is in a total lunar eclipse. It has no real significance; however, it does give the moon a red-tinted look. This can only happen during a full moon when the sun is fully illuminated against the moon’s surface.