Is male testosterone in freefall?
Men’s average testosterone levels have halved over the past 50 years, according to scientists who say society is facing a male fertility cri...
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The Guardian's Science Weekly
The award winning Science Weekly is the best place to learn about the big discoveries and debates in biology, chemistry, physics, and sometimes even maths. From the Guardian science desk Ian...
The Guardian's Science Weekly Podcast Guide
Listen to The Guardian's Science Weekly, a Religion & Spirituality podcast by The Guardian. Stream 324 episodes in English, follow new audio stories, and play episodes online on Radio and Podcast.
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‘A break from scrolling’: how Gen Z fell in love with birding
In the last 50 years, Britain has lost an astonishing 73 million wild birds from its landscape, according to the British Trust for Ornitholo...
‘Beautiful blobs’: can scientists build life from scratch?
Researchers claim they are closer to creating life from nothing after building tiny, quivering blobs that use lab-made DNA to feed, grow and...
Reflecting pool algae: the science Trump needs to know
The Lincoln Memorial reflecting pool in Washington DC has hardly been out of the news since April when President Trump vowed to have it reno...
Nature or nurture: can genes make us behave ‘badly’?
How much do our genes determine about our lives, and could they influence traits like risk-taking, antisocial behaviour or even violence? Ia...
Extreme heat: is the UK becoming a 40C country?
Met Office forecasters have issued a rare red weather warning for England, with temperatures potentially reaching 40C (104F) in some places....
The audacious plan to refreeze the Arctic
Sea ice is melting fast and worsening the climate crisis. But what if there were a way to thicken it again? Madeleine Finlay is joined by en...
Should we ban social media for under-16s?
The UK prime minister, Keir Starmer, has announced a social media ban for under-16s, as part of an online safety drive that aims to go even...
‘The undruggable became druggable’: a gamechanging treatment for the world’s deadliest cancer
A daily pill can double survival time in patients with the world’s deadliest cancer, according to the results of a clinical trial that exper...
The dinosaurs who survived the asteroid
While many dinosaurs were wiped out when a colossal asteroid struck Earth 66m years ago, one group survived: birds. Prof Steve Brusatte, a p...
Heatstroke, sports washing and VAR psychology: the science of the World Cup
It’s just a week until the first whistle of the 2026 World Cup. To mark the occasion, Madeleine Finlay talks to Ian Sample about the science...
The incredible science of the sleeping brain
Humans have been wondering why we sleep for thousands of years. Is sleep’s purpose rest and relaxation, memory consolidation or maybe cognit...
Are robots nearing their ChatGPT moment?
Last month at Beijing’s half marathon, a robot named Lightning beat the human world record by nearly seven minutes. It’s the latest in a str...
Red-light masks: can they really slow ageing?
Home red-light therapy devices have exploded in popularity as masks, body wraps and mittens promise to reduce wrinkles, redness and even acn...
Stateside with Kai and Carter: why the fight over abortion pills is only just beginning
The US supreme court has preserved nationwide access to mail-order abortion pills – for now. As Carter Sherman explains, the fight to protec...
Can a name change transform PCOS outcomes for women?
After more than a decade of global consultation, polycystic ovary syndrome – which affects as many as one in eight women – has been renamed....
Ebola: how does it spread and can the outbreak be contained?
An outbreak of Ebola has emerged in the Democratic Republic of Congo and Uganda, leading to nearly 400 confirmed cases and more than 100 dea...
Stateside with Kai and Carter: Stacey Abrams on why gutting of the US Voting Rights Act is ‘evil’
The US supreme court dealt a devastating blow to the 1965 Voting Rights Act when it ruled in Louisiana v Callais in April that states cannot...
Hantavirus update, Pentagon’s UFO files, can art slow biological ageing?
Madeleine Finlay sits down with co-host and science editor Ian Sample to discuss three eyecatching stories from the week, including an updat...
Strange trip: why Trump is backing psychedelics
Last month President Trump signed an executive order designed to fast track both research and access to psychedelic drugs as treatments for...