This app will stop working on 3rd April 2017. But you can still listen to BBC iPlayer Radio via your browser by visiting bbc.co.uk/radio
Alan Winfield talks to Jim Al-Khalili about the ethics of robots, from drones to androids.
Simon Wessely on medically unexplained symptoms and syndromes.
Sean Carroll tells Jim why he abandoned Einstein for quantum entanglement.
Professor Alison Smith talks to Jim Al-Khalili about the many and varied uses of algae.
Sadaf Farooqi describes how she found ten rare genetic disorders that cause obesity.
Geologist Jan Zalasiewicz talks to Jim Al-Khalili about the Anthropocene, the Age of Man.
Michele Dougherty tells Jim Al-Khalili why she diverted the Cassini mission to Saturn.
US science superstar, Neil de Grasse Tyson describes why Pluto isn't a planet.
Neuroscientist Richard Morris explains how brain cells remember.
Professor Dame Julia Higgins shares her passion for polymers with Jim Al-Khalili.