Why is Mars red? A new clue to the history of...

2025 was one of the most consequential years for space policy in modern U.S. history. In this special year-in-review episode, Planetary Radio takes a deep dive into what happened behind the scenes in U.S. space policy and advocacy as NASA faced unprecedented proposed cuts to its ...  Show more

It was such a delight to feature work by our own Kate Howells in The Planetary Society’s member book club. We keep Kate busy as our public education specialist, but she found time to write about many of her favorite natural satellites in this richly illustrated edition. Join her ...  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

SpaceTime Series 28 Episode 13
Mysteries of Water on Mars and the Origins of Earth's Moon
In this episode of SpaceTime, we explore groundbreaking discoveries about the history of water on Mars. New research reveals thousands of mounds on the Martian northe ...  Show more

Space-settling enthusiasts have long had an eye on Mars, and now they have the backing of the world’s richest man. Elon Musk recently claimed that humans could be on the planet by 2030 and be living there in a self-sustaining city within 20 years. But is it really that simple? Ma ...  Show more

In the news, we speak to the WHO about the rise in cases of the new variant of Mpox. Also, the final piece of Stonehenge is traced back to its origin, and Nasa's InSight lander finds evidence of liquid water on Mars. Plus, how horses almost deceived scientists into believing they ...  Show more