The story of the operation that led the killing of Osama Bin Laden in Pakistan
BBC World Service
Lucie Green reports on plans for a radio telescope the size of a continent
How does architecture in Dubai compare with Doha?
1/2 The astonishing rise of state-sanctioned churches under Communist rule
2/2 Olga Betko returns to Chernobyl, on the 25th anniversary of the nuclear disaster
Henning Wehn explores the story of one of Monty Python's most bizarre adventures.
BBC Radio 4
Martin Wainwright looks at our national night time obsession - with the beauty of moths.
2/30 The programme follows a pair of beavers in Devon.
Jenny Hammerton, a DJ of 78s, explores why the old discs are still alive and kicking.
Peter Snow explores a 1951 Daily Mail to bring alive the start of the Festival of Britain.