1.196 Views
A mysterious crash in Roswell, NM during the 1940s convinced many that our planet is being visited by space aliens. Crop circles in Britain have only added fuel to the fire. Few scientists doubt that life indeed exists elsewhere, but some believe we're more likely to make contact via radio waves.
First Air Date : Sep 15, 2004
Last Air date : Aug 25, 2011
Episode : 129 Episode
Season : 8 Season
Runtime: 60:45 minutes
Studio: National Geographic
Country: United Kingdom, United States of America
Cast:
Crew:
