At 93, Margaret Kivelson is still at the center of space science and policy. In this charming conversation she shares anecdotes about her early life, how she entered the new field of space physics and some of her groundbreaking work, including discovery of convincing evidence for a saltwater ocean under the ice on Jupiter’s moon Europa. Bruce and Mat offer another great prize from Chop Shop in this week’s What’s Up space trivia contest. Discover more at https://www.planetary.org/planetary-radio/2022-margaret-kivelson

At 93, Margaret Kivelson is still at the center of space science and policy. In this charming conversation she shares anecdotes about her early life, how she entered the new field of space physics and some of her groundbreaking work, including discovery of convincing evidence for a saltwater ocean under the ice on Jupiter&rsquo;s moon Europa. Bruce and Mat offer another great prize from Chop Shop in this week&rsquo;s What&rsquo;s Up space trivia contest. Discover more at <a href="https://www.planetary.org/planetary-radio/2022-margaret-kivelson">https://www.planetary.org/planetary-radio/2022-margaret-kivelson</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.

A fascinating conversation with a space science and policy leader who is still hard at work in her 10th decade.

Legendary Space Physics Pioneer Margaret Kivelson

What does it take to turn a love of space into a global career in science journalism? Sarah Cruddas has done just that. With a background in astrophysics and a passion for storytelling, she’s become a leading voice in space media, covering rocket launches, interviewing astronauts, and writing books that bring the Cosmos down to Earth. In this episode, Sarah shares her path from the U.K. to the front lines of space communication and why she believes storytelling is essential to the future of exploration. She also reflects on the challenges of breaking into the field, the power of listening, and how space can unite people across the globe. Plus, Bruce Betts joins us for What’s Up, where we talk about what makes a great space journalist.

Discover more at: https://www.planetary.org/planetary-radio/2025-making-space-matter

What does it take to turn a love of space into a global career in science journalism? Sarah Cruddas has done just that. With a background in astrophysics and a passion for storytelling, she&rsquo;s become a leading voice in space media, covering rocket launches, interviewing astronauts, and writing books that bring the Cosmos down to Earth. In this episode, Sarah shares her path from the U.K. to the front lines of space communication and why she believes storytelling is essential to the future of exploration. She also reflects on the challenges of breaking into the field, the power of listening, and how space can unite people across the globe. Plus, Bruce Betts joins us for What&rsquo;s Up, where we talk about what makes a great space journalist.
Discover more at: <a href="https://www.planetary.org/planetary-radio/2025-making-space-matter">https://www.planetary.org/planetary-radio/2025-making-space-matter</a>

Space journalist Sarah Cruddas shares her journey from astrophysics to storytelling, exploring how journalism can make space exploration more accessible and meaningful.

Making space matter: A space journalist’s journey

Former NASA Chief Economist Akhil Rao explains why NASA needs economic expertise to navigate the complex—and often misunderstood—market forces that will determine the success or failure of its private partnerships. As NASA relies ever more on commercial companies to enable its own exploration efforts, it is imperative, Rao believes, to provide clear-eyed perspectives that highlight the challenges and solutions required to reach success. And why NASA puts itself at risk for pursuing faith-based program investments after dissolving the strategy and economics team at the agency a few months ago.

Discover more at: https://www.planetary.org/planetary-radio/space-economy-akhil-rao

Former NASA Chief Economist Akhil Rao explains why NASA needs economic expertise to navigate the complex&mdash;and often misunderstood&mdash;market forces that will determine the success or failure of its private partnerships. As NASA relies ever more on commercial companies to enable its own exploration efforts, it is imperative, Rao believes, to provide clear-eyed perspectives that highlight the challenges and solutions required to reach success. And why NASA puts itself at risk for pursuing faith-based program investments after dissolving the strategy and economics team at the agency a few months ago.
Discover more at:&nbsp;<a href="https://www.planetary.org/planetary-radio/space-economy-akhil-rao">https://www.planetary.org/planetary-radio/space-economy-akhil-rao</a>

Former NASA Chief Economist Akhil Rao explains why NASA needs economic expertise to navigate the complex—and often misunderstood—market forces that will determine the success or failure of its private partnerships.

Space Policy Edition: What does NASA need with an economist?

The White House has released its Fiscal Year 2026 congressional budget justification for NASA, and the implications are staggering. If enacted, this proposal would slash NASA’s science program funding by nearly half, cancel dozens of active and upcoming missions, and reduce the agency’s workforce by one-third. Sarah Al-Ahmed is joined by Jack Kiraly, The Planetary Society’s director of government relations, to examine what’s in the nearly 500-page document, what it means for the future of space science and exploration, and how advocates can still act to save NASA science.

Then, in What’s Up, Planetary Society Chief Scientist Bruce Betts shares insights on China’s newly launched asteroid sample return mission, Tianwen-2. The spacecraft will rendezvous with near-Earth asteroid 469219 Kamoʻoalewa, offering new scientific opportunities amidst a moment of global uncertainty in space exploration.

Discover more at: https://www.planetary.org/planetary-radio/2025-FY-2026-budget-proposal

The White House has released its Fiscal Year 2026 congressional budget justification for NASA, and the implications are staggering. If enacted, this proposal would slash NASA&rsquo;s science program funding by nearly half, cancel dozens of active and upcoming missions, and reduce the agency&rsquo;s workforce by one-third. Sarah Al-Ahmed is joined by Jack Kiraly, The Planetary Society&rsquo;s director of government relations, to examine what&rsquo;s in the nearly 500-page document, what it means for the future of space science and exploration, and how advocates can still act to save NASA science.
Then, in What&rsquo;s Up, Planetary Society Chief Scientist Bruce Betts shares insights on China&rsquo;s newly launched asteroid sample return mission, Tianwen-2. The spacecraft will rendezvous with near-Earth asteroid 469219 Kamoʻoalewa, offering new scientific opportunities amidst a moment of global uncertainty in space exploration.
Discover more at:&nbsp;<a href="https://www.planetary.org/planetary-radio/2025-FY-2026-budget-proposal">https://www.planetary.org/planetary-radio/2025-FY-2026-budget-proposal</a>

The Fiscal Year 2026 congressional budget justification for NASA could mark the beginning of a dark age for NASA science. We examine what’s at stake and how you can help advocate for NASA’s future.

Legendary Space Physics Pioneer Margaret Kivelson

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