Stephen Reicher on the psychology of crowds

Psychologist Stephen Reicher talks to Jim al-Khalili about how we behave in crowds.

• 28 mins

Callum Roberts on the urgent need for marine conservation

Callum Roberts on coral reefs and the urgent need for marine reserves.

• 28 mins

Carlo Rovelli on why time is not what it seems

Carlo Rovelli describes how he abandoned the concept of time.

• 28 mins

Caroline Dean reveals the genetic secrets of flowering

Professor Dame Caroline Dean on why some plants need cold before they can flower.

• 28 mins

Cat Hobaiter on communication in apes

Jim Al-Khalili talks chimp gestures with Dr Cat Hobaiter.

• 28 mins

John Taylor on being an inventor

John Taylor tells Jim Al-Khalili how his inventions transformed the electric kettle.

• 28 mins

Sheena Cruickshank on the wonders of the human immune system

DIY Faecal Transplants? Don't do this at home, immunologist Sheena Cruickshank tells Jim.

• 28 mins

Frank Close and particle physics

Jim Al-Khalili discusses quarks and popularising particle physics with Frank Close.

• 28 mins

Rachel Mills exploring the sea floor

Rachel Mills on volcanoes under the sea and how metal deposits feed the oceans.

• 28 mins

Jacqueline McGlade on monitoring the environment from space

Jacqueline McGlade on monitoring the environment from space.

• 28 mins

Noel Fitzpatrick on becoming a supervet

Supervet, Noel Fitzpatrick, talks to Jim Al-Khalili

• 28 mins

Detective of the mind Dr Suzanne O'Sullivan

Detective of the mind Dr Suzanne O'Sullivan talks about brain seizures with Jim Al-Khalili

• 28 mins

Mike Stratton and cancer genes

Mike Stratton talks about searching for cancer genes with Jim al-Khalili.

• 28 mins

Formula One engineer Caroline Hargrove

Formula One engineer Caroline Hargrove talks to Jim Al-Khalili.

• 28 mins

Banning chemical weapons with Alastair Hay

Alastair Hay talks with Jim Al-Khalili about ridding the world of chemical weapons.

• 28 mins

Sky at Night presenter Maggie Aderin-Pocock

Sky at Night presenter Maggie Aderin-Pocock talks to Jim Al-Khalili about astronomy.

• 28 mins

Clive Oppenheimer on the volcanic offerings of our angry earth

Clive Oppenheimer on volcanoes that shake the world.

• 28 mins

Jim Al-Khalili on HIS life scientific

Physicist Jim Al-Khalili tells Adam Rutherford what motivates and inspires him.

• 28 mins

Sue Black on women in tech

Sue Black tells Jim Al-Khalili how she became a software engineer.

• 28 mins

2018 Chemistry Nobel Prize winner, Sir Gregory Winter

Sir Gregory Winter, winner of the 2018 Nobel Prize for Chemistry

• 28 mins

Gwen Adshead on treating the minds of violent offenders

Gwen Adshead tells Jim Al-Khalili how she treats the minds of violent offenders.

• 28 mins

2018 Nobel Prize winner, Donna Strickland, on laser physics

Donna Strickland, the first woman to win a Physics Nobel Prize in 55 years.

• 29 mins

Ken Gabriel, Why your Smartphone is Smart.

How working with robots in the 1980s kicked off a microelectronics revolution.

• 27 mins

Corinne Le Quéré on the global carbon cycle

Professor Corinne Le Quéré talks to Jim Al-Khalili about tracing global carbon.

• 27 mins

Paul Davies on the origin of life and the evolution of cancer

Physicist Paul Davies on the origin of life, aliens and the evolution of cancer.

• 29 mins

Irene Tracey on pain in the brain

Irene Tracey tells Jim Al-Khalili how imaging the brain reveals how and why we feel pain.

• 28 mins

Richard Peto on why smoking kills but quitting saves lives

Epidemiologist Richard Peto on the links between tobacco, disease and early death

• 29 mins

Erica McAlister on the beauty of flies

Dr Erica McAlister talks to Jim Al-Khalili about the beautiful world of flies.

• 30 mins

Plastic pollution with Richard Thompson

How Richard Thompson alerted the world to the micro-plastics in the ocean.

• 27 mins

Ewine van Dishoeck on cosmic chemistry

Astrochemist Ewine van Dishoeck tells Jim Al-Khalili about the space between the stars.

• 27 mins