11 November 2016 Last updated at 08:26 GMT
There'll be a 'supermoon' visible in the sky over the UK overnight on Sunday 13 November.
The moon will look bigger and brighter than normal.
This happens when there's a full moon and the moon is at a point during its orbit where it is particularly close to Earth.
This weekend's 'supermoon' is set to be the biggest for almost seventy years.
Prof Tim O'Brien from the University of Manchester came into the studio to talk to Ricky about how you can see the supermoon.
Space fans you're in for a treat this weekend.