7-th episode of 43-th season "Horizon"

What "Horizon" 7-th episode about

Investigating the theory of panspermia, which claims life on Earth descended from alien life forms. Although the idea was originally ridiculed, Nasa are now investigating its possibilities. In 2001 the phenomenon of `red rain' in India added further weight to the claims, as local Godfrey Lewis found unique biological cells which contained no DNA and could replicate at 300 degrees centigrade.

Episode number: 7

Episode name: "We Are the Aliens"

Episode release date: 14 november 2006 at 21:00

Status: aired