Richard Daniel and the team look at how the osprey has an amazing ability to spot p...
Sue Nelson joins scientists down a mine on their search for the elusive dark matter...
Kirsty Young's castaway is Sir Stuart Rose, executive chairman of Marks and Spencer...
Cathy O'Dowd on the choice she had to make when she saw a dying climber on Everest.
Russell Davies chairs the seventh heat of the perennial general knowledge contest.
Andrew Marr with Tariq Ramadan, Sir Mark Walport, Kate Bush and Jonathan Phillips.