A very unusual phenomenon is happening this weekend, and you won't want to miss it. The only 'Supermoon' of the year will be visible starting this Sunday around the planet. A Supermoon occurs when a full moon happens at the same time as it is closest to the Earth's orbit, so it's quite an exciting event, even if you aren't into this sort of thing normally.

The best time to see it will be right after sunset on Sunday, December 3, and the moon will be closest to Earth around 4:00 AM on Monday, December 4th. This will be the only time this incredible event will occur in 2017, but we have two to look forward to in 2018 -  on January 2, and 31.

If you can't make it outside to view, The Virtual Telescope Project will stream the whole thing live!