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Adam Walton takes a closer look at the planet known as Earth's 'evil twin' - Venus.
BBC Radio Wales
Sian Pari Huws joins Bangor University scientists to research locations for tidal turbines
Adam Walton finds out how the Morgan-Botti Lightning Laboratory is used to test aircraft.
Adam visits a Welsh company which designs and builds bridges all over the world.
Adam Walton explores the chances of life on other planets and the science of astrobiology.