Space's Deepest Secrets: Season 0, Episode 10 - ProjectFreeTV

0 - 10: Secret History of Dark Matter

New discoveries shed new light on dark matter, one of the universe's biggest mysteries. This episode is a mashup of "Space's Deepest Secrets", S02E06, “Curse of Dark Matter” and another Science Channel show “How the Universe Works”, S05E08, “The Dark Matter Enigma”.