Season 5
(2016)
Cast
Episodes
Most Amazing Discoveries 0.0
November 22, 2016
From the furthest reaches of space to our own cosmic backyard, we count down the discoveries that changed everything we…
Mystery of Planet 9 8.0
November 29, 2016
Scientists have discovered a mysterious ninth planet on the very edge of our solar system. Ten times the size of Earth,…
Black Holes: The Secret Origin 0.0
December 6, 2016
Recent discoveries could explain how supermassive black holes grow so big, one of the universe's most mysterious questi…
Secret History of Pluto 8.5
January 3, 2017
The first close-up images of Pluto revealed unimaginable secrets of this mysterious frozen world. Now, scientists inves…
Stars That Kill 0.0
January 10, 2017
The universe is home to real-life Death Stars that could destroy planet Earth. The latest science reveals the terrifyin…
The Universe's Deadliest 8.0
January 17, 2017
The universe is a dangerous place, and we explore the deadliest spots in the cosmos. Between earth and the edge of the …
Life and Death on the Red Planet 0.0
January 24, 2017
Life once existed on Mars, but a series of devastating mass extinctions have made present-day life nearly impossible. T…
The Dark Matter Enigma 0.0
January 31, 2017
Dark matter is the biggest mystery of the cosmos. Scientists know that it has been vital to our universe since its birt…
Strangest Alien Worlds 0.0
February 7, 2017
Discoveries of new planets have revealed countless worlds much stranger than Earth. Some of these worlds don't have sta…