The end of everything

When and how is the universe going to end?

• 27 mins

The Evidence: Pandemic rules: follower or flouter?

Why a sense of “we” rather than “I” makes us more likely to follow pandemic rules

• 51 mins

The Zedonk Problem

What are ligons and tigers? What is a species?

• 27 mins

The Space Burrito

Is there a point in space where the Sun could heat a burrito perfectly? And other puzzles

• 27 mins

Steve Haake

Steve Haake talks to Jim al-Khalili about how technology improves sporting ability

• 26 mins

Evolutionary biologist Alice Roberts

What can we learn from human remains? Alice Roberts talks bones with Jim Al Khalili

• 27 mins

Hopes and fears for Covid-19 vaccines

Vaccines and virus mutations

• 50 mins

Climate meltdown

Wildfires, floods, hurricanes made 2020 record breaking. What it says about climate change

• 37 mins

Marine conservationist Heather Koldewey

Saving seahorses and turning old fishing nets into luxury carpets.

• 27 mins

Astrophysicist Andy Fabian

Professor Andy Fabian on supermassive black holes and their dramatic hold over galaxies

• 27 mins

Plant scientist Dale Sanders

Why the world needs more plant scientists. Prof Dale Sanders talks to Jim Al-Khalili.

• 27 mins

Science Trumped

Let science speak, health expert Tony Fauci pleaded last week. So how was it sidelined?

• 33 mins

The Evidence: The Shapeshifting Virus

Will new vaccines work against the more infectious versions of the coronavirus?

• 50 mins

The power of celibacy

Lucy Cooke discovers why some species reproduce without sex or the need for males

• 27 mins

The power of one

Lucy Cooke explores why some species shirk company in favour of a solitary life

• 27 mins

The power of night

Lucy Cooke examines why it pays to stir when the sun goes down

• 27 mins

The Life Scientific: Giles Yeo

Professor Jim Al-Khalili talks to leading scientists about their life and work.

• 27 mins

The Evidence: Keeping out Covid-19

The virus knows no borders, so do international travel restrictions work for Covid-19?

• 50 mins

The Life Scientific: Cath Noakes

How good ventilation dramatically reduces the risk of inhaling tiny airborne pathogens.

• 27 mins

The Life Scientific: Jane Hurst

Jane Hurst reveals how mice are ruled by their noses.

• 27 mins

The Evidence: Mental health and the pandemic

Mental health distress has risen around the world. How can people's suffering be eased?

• 49 mins

Lithium: Chile’s white gold

Why lithium makes such good batteries

• 27 mins

The equal rights stuff

When women and minorities first went into space

• 26 mins

The Martian Mission

Dr Adam Rutherford and Dr Hannah Fry investigate everyday mysteries sent by listeners.

• 27 mins

The Hamster Power Hypothesis

How many hamsters on wheels would it take to power London? asks Judah from Virginia, USA.

• 27 mins

The noises that make us cringe

Why do some people find noises like a fork scraping a plate so terrible?

• 26 mins

Patient zero: Back from the brink

When polio returned to Asia Pacific

• 40 mins

The Evidence: Sharing Vaccines – what’s gone wrong?

The ethics of putting children in rich countries ahead in the global vaccine queue

• 50 mins

Peter Goadsby on migraine

Peter Goadsby on migraine attacks and the new treatments his research has inspired.

• 27 mins

Tooth and claw: Lions

Our complex relationship with Earth’s greatest predators by the people who know them best

• 26 mins