IMAP and the shape of the heliosphere
Our Solar System is wrapped in a vast, invisible bubble created by the Sun, a protective region that shields Earth and the planets from much of the radiation that fills our galaxy. But until recently,...
14 Jan 56min
Voyager and the heliopause: Exploring where the Sun gives way to the stars
What does it really mean to enter interstellar space, and what have we learned since humanity first crossed the invisible boundary between our Sun and the stars? In this episode of Planetary Radio, we...
7 Jan 58min
Space Policy Edition: Change for the Sake of Disruption at NASA
Marcia Smith, the founder and editor of Space Policy Online, joins the show and revisits a conversation we had one year ago, recorded just weeks before the second Trump administration took office. Tha...
2 Jan 1h 11min
Looking back: Space exploration in 2025
As 2025 comes to a close, Planetary Radio looks back on a year that reshaped space exploration, through stunning discoveries, major milestones, unexpected challenges, and the people who carried scienc...
31 Des 20251h 8min
Looking back: Space policy and advocacy in 2025
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 ...
24 Des 202557min
Book Club Edition: MOONS: The Mysteries and Marvels of our Solar System by Kate Howells
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 ...
19 Des 202559min
Galileo at 30: How a mission transformed our understanding of Jupiter
Thirty years ago, NASA’s Galileo spacecraft became the first mission to orbit Jupiter, opening a new chapter in our exploration of the outer Solar System. Over eight years around Jupiter, Galileo tran...
17 Des 202557min
Space Policy Edition: The Moral Case for Space Science
Why do we explore space, and why does science matter in the first place? In this Space Policy Edition rerun, Planetary Society Chief of Space Policy Casey Dreier revisits a deeply influential 2020 con...
12 Des 20251h 8min
