8.6/1089 votes#1 - Most Amazing Discoveries
Season 5 Episode 1 - Aired 11/22/2016
From the furthest reaches of space to our own cosmic backyard, we count down the discoveries that changed everything we know about our universe.
Director: N/A
Writer: N/A
8.3/1081 votes#2 - Mystery of Planet 9
Season 5 Episode 2 - Aired 11/29/2016
Scientists have discovered a mysterious ninth planet on the very edge of our solar system. Ten times the size of Earth, this strange world could have moons with extraterrestrial life.
Director: N/A
Writer: N/A
8.4/1071 votes#3 - Black Holes: The Secret Origin
Season 5 Episode 3 - Aired 12/6/2016
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.
Director: N/A
Writer: N/A
8.3/1066 votes#4 - Secret History of Pluto
Season 5 Episode 4 - Aired 1/3/2017
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.
Director: N/A
Writer: N/A
8.3/1068 votes#5 - Stars That Kill
Season 5 Episode 5 - Aired 1/10/2017
The universe is home to real-life Death Stars that could destroy planet Earth. The latest science reveals the terrifying secrets of NASA's six deadliest: vampire stars, supernovas that can vaporize a planet, and unpredictable stars gone rogue.
Director: N/A
Writer: N/A
8.1/1069 votes#6 - The Universe's Deadliest
Season 5 Episode 6 - Aired 1/17/2017
The universe is a dangerous place, and we explore the deadliest spots in the cosmos. Between earth and the edge of the universe, there are a million ways to die, and our crash test dummy is on a mission to reveal the worst.
Director: N/A
Writer: N/A
8.0/1066 votes#7 - Life and Death on the Red Planet
Season 5 Episode 7 - Aired 1/24/2017
Life once existed on Mars, but a series of devastating mass extinctions have made present-day life nearly impossible. The latest science shows how Martian life keeps bouncing back as it transforms from a watery world like Earth into a desert planet.
Director: N/A
Writer: N/A
8.1/1070 votes#8 - The Dark Matter Enigma
Season 5 Episode 8 - Aired 1/31/2017
Dark matter is the biggest mystery of the cosmos. Scientists know that it has been vital to our universe since its birth, and new discoveries reveal that it could create black holes, cause mass extinctions, and might even shape life on Earth itself.
Director: N/A
Writer: N/A
NaN/100 votes#9 - Strangest Alien Worlds
Season 5 Episode 9 - Aired 2/7/2017
Discoveries of new planets have revealed countless worlds much stranger than Earth. Some of these worlds don't have stars, others are made out of diamonds. Will we ever find a planet like Earth, or are these distant worlds stranger than fiction?
Director: N/A
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The Best Episodes of How the Universe Works Season 5
Every episode of How the Universe Works Season 5 ranked from best to worst. Discover the Best Episodes of How the Universe Works Season 5!
A users' guide to the cosmos, from the Big Bang to galaxies, stars, planets and moons: where did it all come from and how does...
Genre:Documentary
Season 5 Ratings Summary
"Most Amazing Discoveries" is the best rated episode of "How the Universe Works" season 5. It scored 8.6/10 based on 89 votes. Directed by N/A and written by N/A, it aired on 11/22/2016. This episode is rated 0.3 points higher than the second-best, "Mystery of Planet 9".