March's full moon is called the "Worm Moon," according to the Farmer's Almanac, which has documented the history of how full moons are named. Moons that take on these reddish hues during a total lunar eclipse are called " Blood Moons ." The combined nicknames have resulted in some calling it the " Blood Worm Moon ."

March's full moon will turn a different color for a bit tonight. But why? Here's why the moon takes on a red or orange color during a lunar eclipse.