How the Universe Works Season 9 Episode 6
Galaxies are locked in continual combat across the universe, and our own Milky Way will face its biggest opponent ever, the Andromeda Galaxy, in a titanic and deadly struggle that could create a new and unrecognizable super galaxy.
Serie: How the Universe Works
Guest Star: Hakeem Oluseyi, James S. Bullock, Lawrence Krauss, Michelle Thaller, Mike Rowe, Moogega Cooper, Phil Plait, Richard Lintern