Stephanie Flanders contemplates nothing with science editor Jeremy Webb who is fascinated with the idea of vacuum, voids and absolute zero; and astronomer Carolin Crawford explains there's more to black holes than meets the eye. The director Simon McBurney looks to reveal all in his production of the Magic Flute, including liberating the orchestra from the pit to centre stage; and Fiona Shaw asks 'is this all?' in her re-imagining of Britten's The Rape of Lucretia.

Producer: Natalia Fernandez.