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Brian Cox and Robin Ince are on a mission to discover whether extra-terrestrials exist. But if there really is other life out there, what would it look like?

Comedian Conan O\\u2019Brien is hoping for lizard-like creatures with superhuman strength, while Greg Proops imagines little green girls, like the ones in the Star Trek series he grew up with. Or possibly Ewoks. Either way, nobody can agree on the best way to communicate with them if we do ever make contact. Should we send them complicated equations so they realise how intelligent we are, and is playing Bach to aliens too much like showing off?

New episodes will be released on Wednesdays. If you\\u2019re in the UK, listen to the full series on BBC Sounds: bbc.in/3K3JzyF

Producer: Marijke Peters\\nExecutive Producer: Alexandra Feachem

Episodes featured:\\nSeries 1: Extraterrestrial Life\\nSeries 25: Exploring Our Solar System\\nSeries 12: San Francisco Special\\nSeries 9: To Infinity and Beyond