Helen Keen stars alongside Peter Serafinowicz and Susy Kane for a second series of the factually-correct but funny exploration of the science and history of space travel. This week examines the Fermi paradox - if the universe is really infinite it should contain infinite life, and yet we have had no contact from alien civilisations. It also takes a look at different ideas through history of what life might be like on other planets, and some of the more surprising suggestions scientists have had on how to get in touch with it, from giant burning parallelograms in the Sahara to sending nude pictures into space....
Written by Helen Keen and Miriam Underhill
Produced by Garth Edwards.
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