Did we find signs of life on Mars?

Fetuses leave cells behind in their parents' bodies, where they braid themselves into tissues, and remain, for years. What are they doing in there? Guests: ⁠Amy Boddy⁠, Associate Professor of Anthropology at the University of California, Santa Barbara; ⁠Lee Nelson⁠, Professor Eme ...  Show more

Paul Ehrlich was famous for predicting a population explosion that would destroy the planet, but he didn't count on human ingenuity. Guest: Bryan Walsh, Vox senior editorial director This episode was made in partnership with Vox’s Future Perfect team. For show transcripts, go to ...  Show more

A paper published by the Centers for Disease Control and Prevention argues that Chagas disease is now endemic in the U.S. Koalas may finally be spared from a deadly epidemic. Meanwhile NASA’s Perseverance Mars rover has uncovered tantalizing clues about potential ancient microbia ...  Show more

SpaceTime Series 27 Episode 45 *Perseverance collects its 24th sample on Mars NASA’s Mars Perseverance Rover has just collected its 24 geological sample from the surface of the red planet.  The drill core offers new clues about Jezero Crater and the lake it may have ...  Show more

SpaceTime Series 27 Episode 135 *Could Uranus Moon Miranda Have a Subsurface Ocean? A new study suggests that Uranus' moon Miranda may harbour a liquid water ocean beneath its peculiar jigsaw-like surface. The findings, published in the Planetary Science Journal, challenge existi ...  Show more

Many missions are working to understand Mars' past habitability, but could there still be microbial life on the red planet today? This week on Planetary Radio, we discuss the proposed Mars Life Explorer mission with Amy Williams, assistant professor of geology at the Universit ...