Sunday night's supermoon was the one and only supermoon of 2017.
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MORE: Supermoon around the world
Supermoon lights up the sky all over the world
A supermoon means the full moon looks bigger and brighter than normal.
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Of course, the moon doesn't actually change size, but it appears to be larger because of how its orbit lines up with the Earth and sun.
If you missed it -- no worries.
The first two full moons of 2018 will also be supermoons.
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ABC7 viewers went outside to catch a glimpse of the supermoon and shared incredible photos using #abc7eyewitness.