How the Universe Works
War of the Galaxies (S09E06)
Throughout the universe, galaxies are engaged in an endless battle, and now the Milky Way is about to confront its most formidable adversary yet: t...
S09E06
Show
Season 9 Episodes
S09E02 - Mission to a Comet
How the Universe Works
S09E03 - Secrets Of The Sun
How the Universe Works
S09E04 - Aliens of the Microcosmos
How the Universe Works
S09E05 - Curse of the White Dwarf
How the Universe Works
S09E06 - War of the Galaxies
How the Universe Works
S09E07 - The Next Supernova
How the Universe Works
S09E08 - Secret Lives Of Neutrinos
How the Universe Works
S09E09 - Birth of Monster Black Holes
How the Universe Works
S09E10 - Gravitational Waves Revealed
How the Universe Works