← Previous Next → 3x02 Parallel Universes First Aired: Nov. 18, 2008 on History Channel Summary: - An exploration of the theories behind parallel universes. Includes the use of particle colliders to determine the existence of new dimensions and universes.

Series Main Characters

• Erik Thomp…
• Holly Gilb…
• Neil Tyson
• Larry Combs
• Jay M Pasa…
• Craig De F…

• Rob Roy Br…
• Kenneth Ne…
• Steve Squy…
• William Ha…
• Everett Gi…
• David McKa…
• Andrew Ste…
• Peter Smit…
• Russell Sc…
• Don Yeomans
• Stan Woosley
• Rene Ong
• Gibor Basri
• Robert Cal…
• Marc Kamio…
• Kevin Baines
• Claudia Al…
• Laura Danl…
• Andy Inger…
• Margaret K…
• Timothy Do…
• Jon Aurnou
• Bonnie Bur…
• Bill Stone…
• Amanda Hen…
• Dana MacKe…
• Robin Canup
• Gary Lofgren
• Donald Bro…

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Guest Stars Narrator played by Erik Thompson