NASA says there will be a total lunar eclipse early tuesday morning that will turn the moon a burnt reddish orange.
It's called a "blood moon," and this one is just the first in a series of four consecutive total eclipses.
Within a year and a half, North America will be able to see a blood moon a total of four times.
Some see the blood moons as a sign from God that signal the end times:
USAToday article: Does Tuesday's 'blood' eclipse signal the End Times?
New York Daily News: Popular televangelist claims four blood moons are sign of ‘world-shaking event’