Broadcasts

Astronomer and Queen guitarist Brian May teams up with astrophysicist Derek Ward-Thompson to bring the cosmos to 3D. Plus, Frances Arnold’s game-changing technique of “directed evolution” creates enzymes with unusual capabilities. And, how did we come to think of society’s toughest problems as something for individuals to manage rather than governments to regulate?

A new simulation shows large amounts of hydrogen in our planet’s core. Scientists report on what they found in 290-million-year-old vomit. Plus, a comedic play and a 20-year neurology study explore what we can do to prevent dementia and cognitive decline. And, a federal law aims to close the legal loophole that lets stores sell THC products from hemp.

Autism has long been thought of as a condition that mostly affects boys, but data suggest that’s not true. Plus, an update on the first state-run psilocybin therapy programs, and why the American Medical Association is joining an effort to launch an independent vaccine review panel. And, what record-low snowpack in Utah and Colorado means for the region’s water supply.

An evolutionary biologist weighs in on mating and dating in the age of apps. Is pair bonding passé? Is single the new married? Plus, the Relativistic Heavy Ion Collider, or RHIC, has ceased operation. What’s next for particle physics? Add, researchers are homing in on how kids reap long-term health benefits from getting dirty, whether cuddling furry pets or playing with friends.

The mountaineering history behind “skimo,” a new Winter Olympic event. Plus, new USDA dietary guidelines tell us to “eat real food.” Should policymakers get highly processed foods out of our stores and school lunches? And, it’s easier than ever for companies to collect your personal data and compile it into a profile for advertisers, ICE, and other agencies.

A flu variant called subclade K emerged too late to be fully covered by this year’s vaccine. But the flu shot can still help protect you. Plus, a new study suggests dogs began to diversify about 11,000 years earlier than we thought. And, in turbulent times, it helps to hear stories of resilience. What can we learn from 3.5 billion-year-old bacteria that eat light?

An epidemiology study finds that variations in one gene play a major role in determining the risk of Alzheimer’s disease. Plus, X’s Grok AI is undressing users, but it’s just the tip of the iceberg with fake imagery online. What can we do about deepfakes? And, Louisiana communities continue collecting data on industrial pollution, despite a law restricting its use.

Some Parkinson’s patients may experience strange symptoms, like smell loss and sleep disorders, decades before diagnosis. Plus, a Pompeii construction site preserved in ash reveals secrets of the famously durable Roman concrete. And, Greenland sharks live for hundreds of years, but their eyes never seem to get old. What can they teach us about aging human eyes?

One year after the LA fires, the Community Brigade is equipping residents to prepare for, fight, and recover from wildfires. Plus, journalist Daisy Hernández chronicles the history of Chagas disease, also known as kissing bug disease, and how it changed her family’s story. And, recent studies on raccoons and dark-eyed juncos investigate how urban wildlife is evolving.

A look back at the biggest science stories of 2025, and a few you may have missed. Plus, over the past year, most of your body has replaced itself cell by cell. What can we learn from other animals’ dramatic feats of regeneration? And, ultramarathoners can run with what seems like superhuman stamina. But are their bodies much different than the rest of ours?