Carol Robinson on her journey from lab technician to Professor of Chemistry
Dr Jeremy Farrar talks about his experiences on the frontline with avian flu in Vietnam, and his priorities as the new director of the Wellcome Trust medical research charity
Jim al-Khalili discusses earthquakes and fracking for gas with geologist Zoe Shipton.
Sir Chris Llewellyn Smith chats to Jim Al-Khalili about quarks, bosons, and running the biggest experiments in history.
Botanist Sandy Knapp speaks about her adventures collecting plants in South America
Astronomer Chris Lintott tells Jim Al Khalili about "Citizen Science" and crowd-sourced astronomy project Galaxy Zoo, and of working with Brian May and the late Sir Patrick Moore.
Janet Hemingway on malaria and the coming of insecticide resistance, with Jim Al-Khalili
Jim Al-Khalili meets child psychiatrist Professor Sir Michael Rutter
The guest is Dame Julia Slingo, the chief scientist at the Met Office. The conversation ranges from her childhood wonder of clouds to climate change's part in this winter's floods.
Geneticist Veronica van Heyningen and her work on the gene which makes Darwin's Organ of Extreme Perfection - the eye.
Jenny Graves 01 Oct 13
Duration: 28 mins
Jim Al-Khalili talks kangaroos and the death of the Y chromosome with Prof Jenny Graves
Sophie Scott 24 Sept 13
Jim Al-Khalili talks to neuroscientist Professor Sophie Scott about how brain imaging is revealing secrets of human speech and why laughter is such an important human social tool
Ian Stewart 17 Sept 13
Jim Al-Khalili discusses sci fi and popularising maths with Professor Ian Stewart.
Mike Benton 10 Sept 13
Duration: 29 mins
Life on earth has gone through a series of mass extinctions. Mike Benton talks about his fascination with ancient life on the planet and his work on the Bristol Dinosaur Project.
Mark Lythgoe 03 Sept 13
Mark Lythgoe runs the largest medical imaging facility in Europe. He talks about coming to science late after failing his A Levels and why he enjoys collaborations with artists.
Joanna Haigh 27 Aug 13
Joanna Haigh studies the influence of the sun on the earth's climate using satellites. She talks to Jim al-Khalili about her fascination with climate and how it is changing.
Russell Foster 20 Aug 13
Russell Foster, Professor of Circadian Neuroscience at Oxofrd University, is obsessed with biological clocks. He talks to Jim al-Khalili about how light controls our wellbeing.
Elizabeth Stokoe 25 June 13
Jim Al-Khalili talks to Professor Liz Stokoe about her research analysing real life conversations from first dates, neighbours and police interviews with suspected criminals.
David Spiegelhalter 18 June 13
Is it more reckless to eat a bacon sandwich everyday or go skydiving? Jim Al-Khalili talks to David Spiegelhalter about risk, uncertainty and the real odds behind everyday dangers.