Dark Breath

Loading player...
In July 2024 a startling scientific paper was published.

Headlined ‘Evidence of dark oxygen production at the abyssal seafloor’, scientists told how they had discovered oxygen being made two and a half miles down, at the bottom of the Pacific Ocean.

Their claim centred on small polymetallic nodules on the seafloor, and the key question - could these lumps of metal somehow be making oxygen in complete darkness?

It was an extraordinary finding that, if proven, could overturn hundreds of years of scientific knowledge about how this crucial ingredient for life is made. It prompted global headlines and split scientists.

But a year and a half on, are we any closer to knowing the answer... Is dark oxygen really possible?

BBC News science correspondent Victoria Gill investigates for BBC Radio 4, and finds so much more than a scientific anomaly.

Dark Breath is the story of a scientific controversy played out in real time. A row about science that became personal. And a discovery that crashed headlong into the debate about whether we should mine metals from the deep sea.

What does the story tell us about the messy and human scientific process? And what bearing does it have on the decision to exploit some of the last untouched parts of our planet?

Presenter: Victoria Gill
Producer: Gerry Holt
Editor: Ilan Goodman
13 Apr English United Kingdom Science

Other recent episodes

Women Not Included: Drugs and Clinical Trials

After working exclusively with male mice while looking for a treatment for type 1 diabetes, Dr Ella Hubber begins to uncover a much bigger issue: modern medicine is not built equally for everyone. Along with journalist Chhavi Sachdev, she explores how decades of clinical research have overlooked women with serious…
10 Aug 26 min

The friendly virus

Our antibiotics are failing us. In 2025, the UK Government said antibiotic resistance (AMR) contributes to more than 35,000 deaths each year in the UK. Emergency doctors say they are losing patients on a regular basis when they run out of ways to treat them. Antibiotics have saved countless lives,…
22 Jun 26 min

The Life Scientific: Dean Lomax

Have you ever been told you aren't good enough to do something, then gone ahead and proved the naysayers wrong by doing it anyway - in glorious, headline-grabbing style? That is the satisfying story of Dr Dean Lomax. Dean grew up in Doncaster with a passion for fossils but after…
15 Jun 27 min

The Life Scientific: Helen Hastie

What if robots of the future weren’t just clever machines, performing tasks in isolation, but trusted teammates you could have a chat with? That could respond naturally to conversational cues and even explain their work? Making this relationship a reality is a focus for Helen Hastie, Professor of Human-Robot Interaction…
8 Jun 27 min

The Life Scientific: Seth Berkley

Dr Seth Berkley is an epidemiologist and global health leader whose career has been shaped by one central problem: vaccines save lives, but only if people can actually get them. His 40-year career has spanned the global, from helping to build Uganda’s first HIV surveillance system and founding the International…
1 Jun 27 min