Adam Walton explores what message the world should be sending out to alien worlds.
BBC Radio Wales
Graihagh Jackson and the team discuss whether Pluto should be considered a planet.
BBC Radio 5 live
Exploring the demolitions industry through the dismantling of Marischal College, Aberdeen.
BBC Radio 4 Extra
Adam Walton goes cetacea-spotting off Anglesey's Lynas Point.
The week's leading science breakthroughs, from the evolution of dogs to Turkish whistling.
Adam Walton searches the Cambrian Mountains for a Bronze Age copper mine.
Kat Arney and the team explore the science behind wonder material, graphene.
5/6 Dave Gorman and Stewart Lee consider a CD player/microwave oven combo.
Adam Walton learns about the science of music at the National Eisteddfod in Meifod.
Chris Smith and the team look at the impact hormones have on our desire to reproduce.
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