Science Friday

Science Friday with host Ira Flatow discusses the latest in science, technology, health, and the environment. It's brain fun, for curious people.

Recent Episodes

Hr2: Springtime Soil, Muskox

Moldy compost? Compacted soil? Here comes some soil science to help your garden spring into shape. Plus how one researcher plays pretend to shed light on species survival in a warming climate.

Hr1: News Roundup, Forensic Science, Hack Stockpile, Undiscovered

A look at efforts to improve forensics after the death of a key federal commission. Plus, when should the government alert the computer industry about software flaws that could become cyberweapons? And the story of meteorite hunter Nina Lanza, and what life is really like in Antarctica.

Hr2: Microwaves, Sea Spray, THC, Sea Lion Pups

We have been microwaving our food for 50 years. Why are some people still worried about their safety? And new research looks at the connections between the oceans, the phytoplankton and bacteria that live in them, and the aerosolized materials that can end up high in the atmosphere.

Hr1: News Roundup, Bird Tracking, Homo Naledi, Undiscovered

The team of paleoanthropologists that discovered fossils of Homo naledi in a South African cave two years ago say the bones are between 335,000 and 236,000 years old. Plus, Science Friday has a new show! Undiscovered tells the back stories of great scientific discoveries.

Introducing Undiscovered: Episode 1, Boss Hua and the Black Box

Introducing Undiscovered, a brand-new podcast spinoff from SciFri! A team of social scientists stumbles onto a cache of censored Chinese social media posts—and decides to find out what the Chinese government wants wiped from the internet.

Hr2: Endurance, Borne, Giant Larvacean

In Jeff VanderMeer's latest book, a future world overrun by biotech mutants still has hope. And scientists investigate the genetic pathway that leads to better endurance in mice.