The Big Think

Aliens: The Big Think

Series 1 - Episode 1 Aliens: The Big Think



Naturally a documentary about the search for intelligent extraterrestrial life is narrated by television’s most famous alien.

Peter Capaldi’s voice adds an edge to this wide-ranging survey of the theories surrounding the possibility of finding life across the galaxy. In the centre is the Astronomer Royal, Martin Rees, who after a distinguished career investigating the Big Bang and black holes, has turned his attention to proving we are not alone in the universe.

Archive footage provides a fascinating explanation of how we got to our current understanding, but it’s slightly undercut by the presentation of Rees’s conclusion in the introduction. Why do programme-makers feel we need these spoiling previews?


The search for extraterrestrials is no longer sci-fi - it is a question engaging some of the greatest minds in science. This documentary gets inside the minds of scientists exploring the possibilities of what could be out there, including Professor Martin Rees, the Astronomer Royal, who thinks the common idea of organic aliens is all wrong.

Cast & Crew

Narrator Peter Capaldi
Director Tom Hewitson
Executive Producer Jonathan Renouf
Producer Tom Hewitson