Rachel Mills on volcanoes under the sea and how metal deposits feed the oceans.
Jim Al-Khalili discusses quarks and popularising particle physics with Frank Close.
DIY Faecal Transplants? Don't do this at home, immunologist Sheena Cruickshank tells Jim.
John Taylor tells Jim Al-Khalili how his inventions transformed the electric kettle.
Jim Al-Khalili talks chimp gestures with Dr Cat Hobaiter.
Professor Dame Caroline Dean on why some plants need cold before they can flower.
Carlo Rovelli describes how he abandoned the concept of time.
Callum Roberts on coral reefs and the urgent need for marine reserves.
Psychologist Stephen Reicher talks to Jim al-Khalili about how we behave in crowds.
Jim Al-Khalili talks to Clare Grey about the batteries that could power our future.
From sewage treatment to Crossrail, engineer Ailie MacAdam talks to Jim Al-Khalili.
Jim Al-Khalili discusses the genetics of cancer with Professor Sir John Burn.
2017 Nobel Prize-winner Richard Henderson on how he zoomed in on the molecules of life.
Jim Al-Khalili discusses the flu virus with Professor Wendy Barclay of Imperial College.
Jim talks to mathematician Eugenia Cheng about mathematics, music and baking.
The computer that costs little more than a toasted sandwich.
Zoologist and inventor Adrian Thomas talks to Jim Al-Khalili about the mechanics of flight
Ellen Stofan, former chief scientist at NASA, talks to Jim Al-Khalili.
Sex, guillemots and the virtuoso finch.
Jim Al-Khalili asks Steve Cowley if we will ever have energy from nuclear fusion.
Jim Al-Khalili talks to astrophysicist Lucie Green about studying the sun.
Singing leopard seals and other perils of research in Antarctica.
Jennifer Doudna talks to Jim Al-Khalili about her research that is transforming genetics.
Tamsin Mather explains what volcanic plumes tell us about our planet, past and present.
Jim Al-Khalili talks transient stars and music festivals with Tim O'Brien of Jodrell Bank.
Ottoline Leyser talks to Jim Al-Khalili about how plants decide to grow the way they do.
Fay Dowker and Jim Al-Khalili discuss the texture of space-time.
Jim Al-Khalili talks to Dr Ann Clarke about preserving global animal DNA in The Frozen Ark
Jim Al-Khalili talks to Prof Graham MacGregor about his remarkable war on sugar and salt.
Jim Al-khalili talks to Professor Liz Sockett about the evil genius of predatory bacteria.