Stellar Babyboom: 'Galaxy collisions are common in our universe' [SpaceScoop @ NASA CXC]
- Uploaded by Ur_lnner_Voice on Feb 4, 2014
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Light from the nearest star, Proxima Centauri, must travel through empty space for 4.2 years before reaching Earth. Despite the vastness of empty space, galaxy collisions are quite common in our Universe.