On this week's show, Ian Sample reports from Europe's biggest fertility medicine conference in Lyon and fertility expert and clinical embryologist Dr Sammy Lee from University College London helps us get behind the headlines. What do you think about the prospect of a mother giving birth to her own half brother or sister?
We also bring you the second in our series of CERN podcasts (produced by the magical minds at yada-yada). Official friend of the pod Dr Brian Cox gives one of the world's leading landscapists Charles Jencks a tour of the ATLAS detector - the so-called 'temple of reductionism'.
Also in the show, there's music in the form of Science Weekly's troubadour physicist Jonny Berliner with the premiere of 'The Subatomic Particle Song', and Nunatak, the British Antarctic Survey's band, who tell us about playing the Live Earth concerts, and the state of sex, drugs, and rock n' roll in the south pole.
Plus, Alok Jha and producer Ben Green get into a heated discussion about the science of yawning.
