Ancient trees

Kirsty Wark with Peter Wohlleben, Jill Butler and Carolyne Larrington.

• 41 mins

Life behind the iron curtain

Adam Rutherford with Karl Schlögel, Katja Hoyer and Adam Curtis

• 42 mins

Monster artist/monstrous art?

Tom Sutcliffe with Claire Dederer, Devika Ponnambalam and Michael Bond.

• 42 mins

Virtuous bankers?

Adam Rutherford with Anne Murphy, Edward Chancellor and David Fishwick.

• 41 mins

Birds and moths

Kirsty Wark with Tim Blackburn, Cheryl Tipp and Mark Cocker

• 41 mins

Hay Festival - Dickens in the 21st century

Tom Sutcliffe talks to Barbara Kingsolver, Michael Rosen and Natalie Haynes.

• 41 mins

Allergies and the Microbiome

Adam Rutherford with Theresa MacPhail, James Kinross and Johnny Drain.

• 41 mins

Hacking and cybercrime

Tom Sutcliffe with Scott Shapiro, Alice Hutchings and Jenny Radcliffe.

• 42 mins

Sums, stories and musical scores

Kirsty Wark with Eugenia Cheng, Sarah Hart and Emily Howard.

• 42 mins

Materials that shape our world

Tom Sutcliffe with Ed Conway, Aarathi Prasad and Jamie Fraser.

• 41 mins

The NHS at 75

Kirsty Wark with Kevin Fong, Isabel Hardman, Phil Whitaker and Andrew Seaton

• 41 mins

Homo Sapiens +/-

Tom Sutcliffe with Sebastian Faulks, Ludovic Slimak and Lauren Gunderson.

• 41 mins

Contains Strong Language Festival in Leeds

Tom Sutcliffe with Lemn Sissay, Lebogang Mashile and Clare O’Dowd

• 42 mins

The Iliad and the right to rule

Adam Rutherford with Emily Wilson, Mary Beard and Ben Riley-Smith

• 41 mins

Israel

Tom Sutcliffe with Nathan Thrall, Ayelet Gundar-Goshen and Jake Wallis Simons.

• 42 mins

Unruly bodies

Adam Rutherford with Emma Dabiri, Carol Morley and Cat Bohannon.

• 42 mins

Infected blood - from scandal to inquiry

Tom Sutcliffe with Cara McGoogan, Jason Evans and Gabriel Scally.

• 42 mins

Soundtrack to life

Kirsty Wark with Natalie Merchant, Michel Faber and Jeffrey Boakye

• 40 mins

China – its poetry and economy

Tom Sutcliffe with Noo Saro-Wiwa, Michael Wood and George Magnus

• 41 mins

Music – from page to performance

Adam Rutherford with Errollyn Wallen, Laurence Cummings and Emma Smith.

• 40 mins

Monet and machine vision

Tom Sutcliffe with Jackie Wullschläger, Mat Collishaw and Jill Walker Rettberg

• 42 mins

Space – the human story

Kirsty Wark with astronaut Tim Peake, writer Samantha Harvey and physicist Roberto Trotta.

• 41 mins

Playing games

Tom Sutcliffe with Marcus du Sautoy, Anthony Bale, Jane Draycott and GT Karber

• 42 mins

Small states: global impact and survival

Adam Rutherford with Armen Sarkissian, Margaret MacMillan and Lyse Doucet

• 41 mins

AI, states and corporations

Tom Sutcliffe with Mike Wooldridge, Naomi Alderman and David Runciman.

• 41 mins

A century of Labour

Tom Sutcliffe with Jon Cruddas, Jane Green and Jonathan White.

• 41 mins

Climate resolutions

Kirsty Wark with Hannah Ritchie, Akshat Rathi and Michael Meredith.

• 41 mins

War crimes justice

Tom Sutcliffe with Gary J Bass, Lyndsey Stonebridge and Christopher Stephen.

• 42 mins

Made out of glass

Adam Rutherford with Jasmine Allen, Ayako Tani, John Parker and Claire Corkhill.

• 42 mins

Opium trade to synthetic opiates

Tom Sutcliffe with Amitav Ghosh, Richard Brittan and Fiona Measham.

• 42 mins