Poster of Cast and Crew in Horizon - Bye Bye Planet Pluto (Season 43 - Episode 9) - Bye Bye Planet Pluto

Horizon - Season 43 - Bye Bye Planet Pluto (Episode 9)

Plot: Is Pluto really a planet? Is it just an asteroid? Horizon investigates.
Episode Aired On:
Thursday, June 22 2006
19 years ago