If you’ve never seen a lunar eclipse, the one that you want to see is coming up! On November 19, we can witness the longest partial lunar eclipse that will occur in this century, lasting 3 hours and 28 minutes, NASA reports.

A lunar eclipse is when the Earth passes between the sun and moon, which makes a shadow over the moon. The Earth hides 97% of the full moon from the sun’s light, which makes the moon look as if it has a reddish hue. That’s right—a red moon!

Normally, our moon looks gray in the sky, which is because the surface is lit up by the sunlight’s reflection. But when a lunar eclipse occurs, the moon, sun, and Earth all line up for a short period of time, which means the Earth blocks sunlight from reaching the moon, making it appear red.

Pretty cool, huh?

Who will be able to see the lunar eclipse?

Luckily, if you live in North America, including people in Canada and Mexico, you’ll have full view of the spectacular moment. And you don’t even need binoculars or a telescope to enjoy it—you just need walk outside your home.

The lunar eclipse will occur on November 19, 2021 between 2:19 a.m. and 5:47 a.m. ET. If you don’t feel like bundling up, then you can catch the moment from your couch via a LIVE stream event.

Additionally, people who live in South America and western Europe will also be able to see most of the eclipse, but the moon will set before it ends, so these folks have to be more strategic with their timing.

Similarly, people in western Asia and Oceania won’t be able to see the earlier part of the event, as the moon will not have risen in that part of the world yet. And if you live in Africa and the Middle East, sorry, but you’ll definitely have to tune into the LIVE event, since you won’t see any of the eclipse from home.

Don’t worry if you aren’t able to see this one—though they’ll be shorter, there should be an average of two eclipses per year, with the next one happening on May 16, 2022. There should be 179 eclipses in the next eight decades, so plenty to not miss!

Will you be outside watching this lunar eclipse happen? Have you ever seen a lunar eclipse before? Tell us the coolest thing you’ve ever witnessed in the sky!