The Great Vaccinator

There’s something rotten in the cows of Denmark. And Minnesota. And Wisconsin. And Idaho. What could cause a previously thriving herd of majestic dairy cattle to stop drinking water and start drinking … urine? A Danish farmer calls a special investigator, who takes one look at hi ...  Show more

In an episode first aired back in 2025 on our sister show, Terrestrials, we take you on a musical journey all about beavers. Few mammals have a bigger positive impact on the planet than the beaver. With its bright orange buck teeth, the creature is an expert engineer that brings ...  Show more

Now that scientists have created a Covid-19 vaccine in record time, the race is on to vaccinate the world. Public health professor Devi Sridhar follows the journey of the Covid vaccine from factory to arm as she goes behind the scenes of the rollout. Speaking to health leaders, p ...  Show more

This past year, scientists racing to stop the novel coronavirus delivered vaccines at a pace and scale the world has never seen before. Adrian Hill, director of Oxford University's vaccine research institute, recounts how he and his team developed the AstraZeneca vaccine. He expl ...  Show more

The race for a COVID-19 vaccine entered a new phase recently. Four different vaccine candidates, developed by Moderna, Pfizer, BionTech and Johnson & Johnson, entered final-stage trials, with two others close behind. But we won’t know exactly how these four vaccines work for mont ...  Show more

On the same day the COVID-19 death toll surpassed 300,000 in the United States, the first vaccines are being administered, finally giving millions of Americans hope for a better future and a return to normalcy. We explore how officials expect to deliver a safe and effective vacci ...  Show more