Watch live on CNN: A total lunar eclipse with a “blood moon” begins at 1:58 a.m. ET.
The moon will begin to change color as it starts to slide into the Earth’s shadow until it becomes a “blood moon” at 3:07 ET, NASA says.
The moon will have a reddish cast during the eclipse.
The best part of the show, the total eclipse portion, will last through 4:24 a.m. ET.
NASA said the entire event can be viewed by people in the Americas, while observers in the western Pacific will catch the second half of the event.
If cloud cover keeps you from seeing the lunar eclipse, you can watch it live on CNN TV and learn more about the “blood moon” on CNN.com and CNN Mobile.