DNA signatures of plant and animal species remain behind even after they’ve been eaten, digested, excreted, and flushed down the toilet.
Today
A Nagasaki survivor and physician recounts his life's work
Dr. Masao Tomonaga was only 2 years old when the United States bombed his home city of Nagasaki. He survived, and grew up to become a physician for other survivors, known as hibakusha. He also studied hematology, and his research on leukemia and myelodysplastic syndromes was foun ... Show More
18m 18s
Aug 3
The evolution of an enzyme engineer who changed chemistry
In nature, enzymes are the catalysts that make much of biology work. They jumpstart chemical reactions that either wouldn’t happen, or would happen super slowly. They break down food, build other molecules, extract energy, and more. What if we could harness evolution to engineer ... Show More
30m 7s
Jul 2022
Chatbots that look like they're alive, and what colour wine bottles to avoid
Dr Chris Smith and the Naked Scientist team present the latest science news, analysis and breakthroughs.The week the team review some of the scientific highlights of the last month, including what the James Webb telescope will reveal about our place in the Universe, how orcas are ... Show More
52m 9s
Dec 2023
COP28, swine flu, Bennu asteroid and digital twins.
Dr Chris Smith and the Naked Scientist team present the latest science news, analysis and breakthroughs, In this week's episode... what’s on the agenda for the COP28 climate summit? What do we know about the new strain of swine flu found in North Yorkshire? Samples from the Bennu ... Show More
51m 52s
Sep 2023
Spinal cord injury treatments, red fire ants and asteroid samples.
Dr Chris Smith and the Naked Scientist team present the latest science news, analysis and breakthroughs.In this week's episode... A breakthrough in treating spinal cord injuries, worrying news about red fire ants in Sicily, we look at what it means for us in the UK and NASA is se ... Show More
27m 41s
Sep 2025
Marsquakes, Vaccine Politics and Mammoth Microbiomes
This week’s roundup dives into Mars’s lumpy mantle, a nasal spray that may help prevent COVID and the growing confusion around vaccine access in the U.S. Plus, researchers link phone use while on the toilet to hemorrhoid risk, uncover ancient mammoth microbiomes and explain why s ... Show More
9m 45s
Oct 2025
How science got here, and where next
As anti-science leaves research reeling, does evidence-based policy in a scientific society have much of a future? Michael Mann, Naomi Oreskes, Angie Rasmussen and Deb Houry discuss some of the sources and motivations that perhaps belie the current state of scientific affairs. Pr ... Show More
31m 30s
Nov 2023
Chickenpox, Champion Jockeys and Light Speed
Will Tingle and the Naked Scientist team present the latest science news, analysis and breakthroughs.This week, the decision to give chickenpox vaccines to kids: what changed medics' minds? Also, spinal injuries, the building blocks of life and why the universe has a speed limit. ... Show More
27m 40s