The Planets and Beyond - Season 1 - Eps 5: Planet 9: The Lost World
Astronaut Mike Massimino investigates the possibility of a giant ninth planet at the edge of the solar system; using the latest technology, he reveals the incredible secrets of this mysterious world.
About The Planets and Beyond

Title: The Planets and Beyond
First Air Date: 2017-08-22
Last Air Date: 2018-09-25
Status: Ended
Rating: 7.8/10 (from 5 votes)
Language: EN
Seasons: 2
Total Episodes: 23
Network: Science
Genres: Documentary
Production Companies: Unknown
Synopsis
The story of the discovery and exploration of the planets, revealing the deepest secrets of our neighbors in space.
Cast

Michael J. Massimino
Narrator (voice)