X

Join or Sign In

Sign in to customize your TV listings

Continue with Facebook Continue with email

By joining TV Guide, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.

John Connolly

Credits See All

Ancient Aliens Special Presentation
Self - Human Mars Study Lead, NASA
Ancient Aliens
Self - Human Mars Study Lead, NASA
Horizon
Self - Rocket Engineer, NASA

Trailers & Videos See All

Ancient Aliens
1:58
Ancient Aliens: Best Of
1:57