Engineering safer football helmets, and the s...

First up on the podcast, more than half of all dogs going through service animal training don’t make it to graduation. Producer Kevin McLean journeys with Online News Editor David Grimm to Canine Companions, one of the biggest organizations in the United States for training worki ...  Show more

First up on the podcast, how do we protect astronauts when they leave the shelter of Earth’s protective magnetic fields and face the slow, constant bombardment of space radiation? Freelance science journalist Elie Dolgin joins host Sarah Crespi to discuss what we know about the d ...  Show more

The chikungunya virus is rapidly spreading in China. Could it make its way to the U.S.? Meanwhile in Alaska a glacial lake outburst flooded the nearby Mendenhall River to record levels. And in Ethiopia fossilized teeth reveal a new species of Australopithecus—one that possibly li ...  Show more

Tens of thousands of animal species are facing extinction, mostly because of human activity. But thanks to conservationists, there are some animals that are making a comeback. This is part four of “The New Conservationists,” a four-part series about the evolving world of animal c ...  Show more

Fareed examines two emerging technologies that are already changing life as we know it—CRISPR gene editing and artificial intelligence—in interviews with two women who pioneered them: UC Berkeley’s Jennifer Doudna and Stanford’s Fei-Fei Li. Learn more about your ad choices. Visit ...  Show more

Today, you’ll hear the truth about the chromosome that determines the male sex, new secrets from an old iceman, and an exoplanet denser than steel. Y Chromosome Puzzle “The Y Chromosome’s genetic puzzle is finally complete.” by Tina Hesman Saey. 2023. “Chromosomal Sex Determinati ...  Show more