Voyaging further into deep space, with astronomer, Dr Lucie Green.
BBC World Service
An insiders’ take on who is winning in the fight against performance-enhancing drugs.
Should rural areas be exempt from the government's right to buy plans?
BBC Radio 4
Wildlife sound recordist Chris Watson presents the redwing. (R)
Claudia Hammond revisits David Rosenhan's influential 1973 study of psychiatric diagnoses.
BBC Radio 4 Extra
Why do some children find language difficult? Dorothy Bishop talks about her life's work.
Brett Westwood explores our relationship with a flabby, sour-faced freshwater fish.
3/31 Nick Crane goes sea cliff climbing on the remarkable rocks of Anglesey. (R)
3/4 Is what is expected of us as citizens psychologically absurd?
Adam Walton explores Earth's past and future mass extinctions.
BBC Radio Wales
Cyfres lle mae Iolo Williams yn chwilio am anifeiliaid anghyffredin yng Nghymru. New se... (R)
Technological and digital news from around the world.
2/10 Scientists achieve a world first, finding and filming the impossible - a giant squid. (R)
Why do some children find language difficult? Dorothy Bishop talks about her life's work. (R)
How discovering the story of stars has transformed our own understanding of the universe. (R)
1/6 Brian Cox and Robin Ince head to New York in the first of four shows from the USA. (R)
Mushroom enthusiast Richard Fortey explores the strange and surprising science of fungi. (R)