Aliens: The Big Think
Available on Prime Video, BBC Select
Are we really alone? Or are there others out there? And, if so, what do they look like? Britain's Royal Astronomer Lord Martin Rees investigates the possibility of finding aliens with a similar biology to our own in this fascinating science documentary. Along with other astrobiology experts, he looks at the remarkable advances made in this area and the chances of unearthing extraterrestrial life.