Wrap yourself up in your warmest blanket, grab a cup of hot cocoa, and step outside – the moon is going to light up the night sky tonight!

A Supermoon occurs when the moon is at a point in its orbit that is closest to the Earth, giving us the biggest and brightest view of it that we can get without launching ourselves into outer space.

Although this is the last Supermoon of the year, it is the first of three occurrences this season: NASA is calling it the “Supermoon Trilogy. The other two Supermoon nights will fall on January 1st, 2018 and January 31st, 2018.

The third part of the trilogy – on January 31st – promises to be the most memorable, as it will also be a full lunar eclipse that can be viewed best from Western North America across the Pacific to Eastern Asia.

Check out NASA’s video about it: