Season
Season 11 Episode
- Season 5 Most Amazing Discoveries
- Season 5 Mystery of Planet 9
- Season 5 Black Holes: The Secret Origin
- Season 5 Secret History of Pluto
- Season 5 Stars That Kill
- Season 5 The Universe's Deadliest
- Season 5 Life and Death on the Red Planet
- Season 5 The Dark Matter Enigma
- Season 5 Strangest Alien Worlds
How the Universe Works - Season 5 Episode 4 Secret History of Pluto
8.20 42 minutes The first close-up images of Pluto revealed unimaginable secrets of this mysterious frozen world. Now, scientists investigate if Pluto is home to a warm ocean of liquid water beneath its surface, and whether this underground ocean could harbor life.
