We're in for a big show in the sky Sunday night. A super moon and a total lunar eclipse are happening at simultaneously, meaning we're in for a treat to see a super blood moon.
It's called a super moon because it will appear 14 percent larger. (The moon has an elliptical orbit so it appears larger when it gets to the point closest to Earth.) It is also a total lunar eclipse, which gives it the reddish color.
VIDEO: Learn more about the phenomenon from NASA scientist Dr. Alex Young, as he joins us via satellite from the Goddard Space Flight Center in Greenbelt, Md.
He explains that a total lunar eclipse is when the moon moves into the shadow of the Earth, so "you're seeing all of the sunrises and sunsets around the Earth at that particular time that's being cast onto the moon, and that gives it this red color."
He says it will start around 9 p.m. and last for about an hour. The best part? No special glasses or binoculars needed.
A super blood moon hasn't been seen in the sky for 33 years, and it won't be seen again for another 18 years.