How the Universe Works
Season 5 Episode 3 - Black Holes: The Secret Origin
Recent discoveries could explain how supermassive black holes grow so big, one of the universe's most mysterious questions. Neither dark matter nor cannibalism can fully explain these monsters, but the latest science might finally provide an answer.
Episodes in Season 5
Most Amazing Discoveries
42 min
Mystery of Planet 9
42 min
Black Holes: The Secret Origin
42 min
Secret History of Pluto
42 min
Stars That Kill
42 min
The Universe's Deadliest
42 min
Life and Death on the Red Planet
42 min
The Dark Matter Enigma
42 min
Strangest Alien Worlds
42 min