Jim Al-Khalili meets evolutionary biologist and author Prof Richard Dawkins.
Jim Al-Khalili discusses silent aircraft with Cambridge engineer, Dame Ann Dowling.
Jim Al-Khalili goes under the Antarctic ice with glaciologist Martin Siegert.
Jim Al-Khalili talks to Pat Wolseley talks about her obsession with lichen.
Geneticist Steve Jones lives life in the slow lane, studying snails.
Jim Al-Khalili meets John Pickett, whose recent work on GM wheat caused a public debate.
Jim al-Khalili talks to the former chief scientific advisor Robert May about public trust.
Jim meets neuroscientist Barbara Sahakian to discuss her work with Alzheimer's disease.
Jim Al-Khalili meets Antarctic scientist Lloyd Peck and discovers giant sea spiders.
Frances Ashcroft on a lifetime spent studying the link between blood sugar and insulin.