12 tiny worlds

Things in the news have been feeling kind of…bleak, so we called in some reinforcements. Vox's senior editorial director and resident good news expert Bryan Walsh joins editor Joanna Solotaroff to remind us that there’s still a lot of good stuff happening, too. Guest: Vox senior ...  Show more

Parents are supposed to provide the best life possible for their kids, right? But what does that mean when genetic testing for the baby enters the picture? And how far should they go? Vox senior reporter Sigal Samuel received that ethically ambiguous question for her advice colum ...  Show more

Mitochondria are known as the powerhouse of the cell—but new research suggests they might be far more complex. Columbia University’s Martin Picard joins Scientific American’s Rachel Feltman to explore how these tiny organelles could be communicating and what that might mean for e ...  Show more

Saturn’s moon Enceladus reveals complex organic molecules that could hint at extraterrestrial life. Researchers also uncover fungi’s ancient reign over Earth and warn that second COVID infections may pose greater risks to young people. Plus, ants ferment yogurt, and flu detection ...  Show more

Scientists are tuning in to a surprising conversation happening inside us—between our gut and our brain. Host Rachel Feltman chats with Maya Kaelberer, an assistant professor at the University of Arizona’s department of physiology, to explore how intestinal cells and microbiomes ...  Show more

This month's episode is an encore presentation of an interview with Dr. Guy Caldwell from the University of Alabama. Dr. Caldwell explains how tools from molecular biology make it possibl ...