Space's Deepest Secrets Season 2 Episode 7 - Race to Planet 9

Airdate: 2017-May-23

Episode summary:

Scientists believe that there is an undiscovered massive planet lurking at the edge of the solar system. Join researchers as they hunt for this mysterious world, an investigation that could reveal the secret history of the solar system's formation.

About Space's Deepest Secrets series:

A new breed of explorer has taken space travel beyond the moon to unlock and reveal first-ever views of alien worlds and cosmic bodies far beyond a...Show more >