A ninth planet may be lurking in our Solar System out beyond Neptune. Caltech's Mike Brown and Konstantin Batygin join us to discuss their new paper, the latest evidence for Planet 9, and why they believe their hunt may soon be over. Then, Bruce Betts, chief scientist of The Planetary Society, joins us for What's Up and an Olympic-themed random space fact. 

Discover more at: https://www.planetary.org/planetary-radio/2024-hide-and-seek-planet-9

A ninth planet may be lurking in our Solar System out beyond Neptune. Caltech's Mike Brown and Konstantin Batygin join us to discuss their new paper, the latest evidence for Planet 9, and why they believe their hunt may soon be over. Then, Bruce Betts, chief scientist of The Planetary Society, joins us for What's Up and an Olympic-themed random space fact. 
Discover more at: <a href="https://www.planetary.org/planetary-radio/2024-hide-and-seek-planet-9">https://www.planetary.org/planetary-radio/2024-hide-and-seek-planet-9</a>

Planetary Radio brings you the human adventure across our Solar System and beyond. We visit each week with the scientists, engineers, leaders, advocates, and astronauts who are taking us across the final frontier. Regular features raise your space IQ while they put a smile on your face. Join host Sarah Al-Ahmed and Planetary Society colleagues including Bill Nye the Science Guy and Bruce Betts as they dive deep into space science and exploration. The monthly Space Policy Edition takes you inside the DC beltway where the future of the US space program hangs in the balance. Visit planetary.org/radio for an episode guide and much more.

Planetary Radio brings you the human adventure across our Solar System and beyond. We visit each week with the scientists, engineers, leaders, advocates, and astronauts who are taking us across the final frontier. Regular features raise your space IQ while they put a smile on your face. Join host Sarah Al-Ahmed and Planetary Society colleagues including Bill Nye the Science Guy and Bruce Betts as they dive deep into space science and exploration. The monthly Space Policy Edition takes you inside the DC beltway where the future of the US space program hangs in the balance. Visit planetary.org/radio for an episode guide and much more.

Planetary Radio: Space Exploration, Astronomy and Science

Planetary Radio brings you the human adventure across our solar system and beyond. We visit each week with the scientists, engineers, leaders, advocates, and astronauts taking us across the final frontier. Regular features raise your space IQ while they put a smile on your face. Join host Sarah Al-Ahmed and Planetary Society colleagues including Bill Nye, the Science Guy, and Bruce Betts, chief scientist for The Planetary Society, as they dive deep into the latest space news. The monthly Space Policy Edition takes you inside the DC beltway with Casey Dreier and Jack Kiraly to discuss the politics of space exploration in the US and advocacy actions you can take to support the missions that matter. Visit planetary.org/radio for the space trivia contest, an episode guide, and much more.

Planetary Radio brings you the human adventure across our solar system and beyond. We visit each week with the scientists, engineers, leaders, advocates, and astronauts taking us across the final frontier. Regular features raise your space IQ while they put a smile on your face. Join host Sarah Al-Ahmed and Planetary Society colleagues including Bill Nye, the Science Guy, and Bruce Betts, chief scientist for The Planetary Society, as they dive deep into the latest space news. The monthly Space Policy Edition takes you inside the DC beltway with Casey Dreier and Jack Kiraly to discuss the politics of space exploration in the US and advocacy actions you can take to support the missions that matter. Visit planetary.org/radio for the space trivia contest, an episode guide, and much more.

Caltech's Mike Brown and Konstantin Batygin discuss their new paper, the latest evidence for Planet 9, and why they believe their hunt may soon be over.

Hide and seek with Planet 9

We take you inside the Mars Innovation Workshop, hosted at the SETI Institute’s headquarters and produced by Explore Mars. Planetary Society Senior Communications Advisor Mat Kaplan shares highlights from the event, exploring how cross-disciplinary collaboration is shaping the future of Mars exploration and creating solutions for challenges here on Earth.

Meanwhile, major changes are happening at NASA. In a move that has raised concerns in the space community, NASA leadership has dissolved key advisory offices, including the Office of the Chief Scientist and the Office of Technology, Policy, and Strategy. Jack Kiraly, our director of government relations, explains what these cuts mean for the agency’s future and why space advocates should be paying attention.

Then Bruce Betts shares his favorite Mars innovations and a new Random Space Fact, in this week’s What’s Up!

Discover more at: https://www.planetary.org/planetary-radio/2025-mars-innovation-workshop

We take you inside the Mars Innovation Workshop, hosted at the SETI Institute&rsquo;s headquarters and produced by Explore Mars. Planetary Society Senior Communications Advisor Mat Kaplan shares highlights from the event, exploring how cross-disciplinary collaboration is shaping the future of Mars exploration and creating solutions for challenges here on Earth.
Meanwhile, major changes are happening at NASA. In a move that has raised concerns in the space community, NASA leadership has dissolved key advisory offices, including the Office of the Chief Scientist and the Office of Technology, Policy, and Strategy. Jack Kiraly, our director of government relations, explains what these cuts mean for the agency&rsquo;s future and why space advocates should be paying attention.
Then Bruce Betts shares his favorite Mars innovations and a new Random Space Fact, in this week&rsquo;s What&rsquo;s Up!
Discover more at:&nbsp;<a href="https://www.planetary.org/planetary-radio/2025-mars-innovation-workshop">https://www.planetary.org/planetary-radio/2025-mars-innovation-workshop</a>

We explore bold ideas from the Mars Innovation Workshop and uncover why NASA’s decision to dissolve key advisory offices is raising concerns across the space community. 

The Mars Innovation Workshop

NASA's science missions have transformed our understanding of the Universe, from breathtaking images of deep space to robotic explorers on Mars. But now, a reported 50% cut to NASA's science budget threatens to shut down missions, halt discoveries, and devastate the future of space exploration. This week, Casey Dreier and Jack Kiraly from The Planetary Society's space policy team break down the fight ahead, explain why these cuts would be catastrophic, and explain how you can take action before they become part of the official presidential budget request. Then, Science Editor Asa Stahl joins us to discuss the power of grassroots advocacy and Planetary Society members' impact in defending space science over the past 45 years. Plus, Bruce Betts returns for What's Up with a celebration of Lunar PlanetVac and a look ahead to this week's lunar eclipse.

Discover more at: https://www.planetary.org/planetary-radio/2025-extinction-level-event-for-nasa-science

NASA's science missions have transformed our understanding of the Universe, from breathtaking images of deep space to robotic explorers on Mars. But now, a reported 50% cut to NASA's science budget threatens to shut down missions, halt discoveries, and devastate the future of space exploration. This week, Casey Dreier and Jack Kiraly from The Planetary Society's space policy team break down the fight ahead, explain why these cuts would be catastrophic, and explain how you can take action before they become part of the official presidential budget request. Then, Science Editor Asa Stahl joins us to discuss the power of grassroots advocacy and Planetary Society members' impact in defending space science over the past 45 years. Plus, Bruce Betts returns for What's Up with a celebration of Lunar PlanetVac and a look ahead to this week's lunar eclipse.
Discover more at:&nbsp;<a href="https://www.planetary.org/planetary-radio/2025-extinction-level-event-for-nasa-science">https://www.planetary.org/planetary-radio/2025-extinction-level-event-for-nasa-science</a>

A reported 50% cut to NASA’s science budget threatens to shut down missions, halt new discoveries, and devastate scientific space exploration. This week, we break down the fight ahead with The Planetary Society’s space policy team and explore how grassroots advocacy can help protect the future of space science.

An extinction-level event for NASA science

Philosopher Rebecca Lowe joins us to explore how the ideas of classical liberalism can provide fresh insight into humanity’s activities in space. Our conversation explores the philosophical tensions between individual freedom and societal good, the instrumental and intrinsic value of space activities, and the uniquely accessible nature of space science and exploration. From a novel approach to lunar property rights and the opportunities to support human flourishing, Lowe offers a thought-provoking vision of how philosophical traditions can inform our cosmic ambitions.

Discover more at: https://www.planetary.org/planetary-radio/classical-liberalism-in-space

Philosopher Rebecca Lowe joins us to explore how the ideas of classical liberalism can provide fresh insight into humanity&rsquo;s activities in space. Our conversation explores the philosophical tensions between individual freedom and societal good, the instrumental and intrinsic value of space activities, and the uniquely accessible nature of space science and exploration. From a novel approach to lunar property rights and the opportunities to support human flourishing, Lowe offers a thought-provoking vision of how philosophical traditions can inform our cosmic ambitions.
Discover more at:&nbsp;<a href="https://www.planetary.org/planetary-radio/classical-liberalism-in-space">https://www.planetary.org/planetary-radio/classical-liberalism-in-space</a>

Can classical liberalism provide fresh insights to guide humanity’s activities in space? Philosopher Rebecca Lowe explains how it can.

Hide and seek with Planet 9

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