Watch Life's Big Questions Season 1 Online
- Subtitles: English
The search for alien life in the Universe is one of the most intriguing quests of our time. From UFOs and little green aliens to the possibility of life in the underground aquifers of Mars, there's no end to speculation as to what form this life could take and how it could have developed. Join Professor Brian Cox as he explores the intriguing "panspermia theory" - and looks at how life could spread between planets.
