How the Universe Works - Season 5 - Eps 2: Mystery of Planet 9
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.
About How the Universe Works
Title: How the Universe Works
First Air Date: 2010-04-25
Last Air Date: 2023-04-02
Status: Returning Series
Rating: 8.2/10 (from 111 votes)
Language: EN
Seasons: 12
Total Episodes: 93
Network: Science Discovery
Genres: Documentary
Production Companies: Discovery
Synopsis
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 it all fit together? A primer for anyone who has ever looked up at the night sky and wondered.
