Earthlings in the United States will have the pleasure of witnessing a total lunar eclipse around 2am on Tuesday.
The moon will turn red at this time as the sun, Earth, and moon will align perfectly, according to a NASA press release.
The eclipse will be visible from all over the US, weather permitting.
The moon will first enter earth's shadow at 2am and be red for a full hour.
This total eclipse will be the first of four in the upcoming year and a half, known as a tetrad, according to a NASA press release.
Though there is usually a lunar eclipse once every six months, they aren't normally all full eclipses.
After this month's full moon, the next of the tetrad will glow red on October 8, 2014, April 4, 2015, and September 28, 2015.
Amazingly, all four of the eclipses will be visible from at least some part of the US.
A total eclipse takes place when a full moon drifts into Earth's shadow, called the umbra.
The moon looks red on Earth because the sun's light filters through the Earth's atmosphere before hitting the moon's surface. Normally, the sun's white light would head straight to the moon, making it appear white.
However, when the light hits Earth first, our atmosphere filters out the longer wavelengths of light, the blue, and lets most of the shorter wavelengths, like red, pass through.
It's the same principle that gives our sky its blue color.
