Experts discussed the origin of life at the Cheltenham Science Festival.
How did life begin? Did the molecules form in outer space or at the bottom of the sea?
Adam Rutherford joined biochemist Nick Lane, chemist Matt Powner and astrobiologist Zita Martins as they looked at the latest research into the biggest unanswered question in biology: where did life come from?
This event was part of The Times Cheltenham Science Festival 2015.