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

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.

The dark age of NASA science? Analyzing the FY 2026 budget proposal

Volcanoes aren’t just an earthly phenomenon. They’re found all across the Solar System. In this compilation episode of Planetary Radio, we explore volcanic and geothermal activity on planets, moons, and distant dwarf planets. You’ll hear from Rosaly Lopes, Nick Schneider, Rae Paoletta, Robbie Herrick, Scott Hensley, and Christopher Glein as they share insights into everything from lava flows on Venus and eruptions on Io to the mysterious heat signatures of icy bodies like Eris and Makemake. This journey spans over 20 years of Planetary Radio, featuring interviews hosted by both current host Sarah Al-Ahmed and founding host Mat Kaplan. 

Then, our Chief Scientist, Dr. Bruce Betts, returns for What’s Up and shares new findings from NASA’s Juno mission, which recently completed close passes by Jupiter’s volcanic moon, Io.

Discover more at: https://www.planetary.org/planetary-radio/2025-volcanic-worlds

Volcanoes aren&rsquo;t just an earthly phenomenon. They&rsquo;re found all across the Solar System. In this compilation episode of Planetary Radio, we explore volcanic and geothermal activity on planets, moons, and distant dwarf planets. You&rsquo;ll hear from Rosaly Lopes, Nick Schneider, Rae Paoletta, Robbie Herrick, Scott Hensley, and Christopher Glein as they share insights into everything from lava flows on Venus and eruptions on Io to the mysterious heat signatures of icy bodies like Eris and Makemake. This journey spans over 20 years of Planetary Radio, featuring interviews hosted by both current host Sarah Al-Ahmed and founding host Mat Kaplan.&nbsp;
Then, our Chief Scientist, Dr. Bruce Betts, returns for What&rsquo;s Up and shares new findings from NASA&rsquo;s Juno mission, which recently completed close passes by Jupiter&rsquo;s volcanic moon, Io.
Discover more at:&nbsp;<a href="https://www.planetary.org/planetary-radio/2025-volcanic-worlds">https://www.planetary.org/planetary-radio/2025-volcanic-worlds</a>

Explore volcanoes across the solar system, from lava flows on Venus to icy eruptions on Enceladus and methane activity on Eris, with highlights from past Planetary Radio interviews. Plus, Bruce Betts shares new Juno insights from Jupiter’s moon Io.

Volcanic worlds across the Solar System

As debates over NASA's future heat up, questions about the value of space exploration are popping up everywhere. This week on Planetary Radio, we're tackling the tough questions head-on with The Planetary Society's staff, including Casey Dreier, chief of space policy, and Ambre Trujillo, digital community manager. They break down the biggest misconceptions about space science, public versus private investment, and why exploration still matters in an ever-changing world. 

Then Jack Kiraly, director of government relations, joins us for a space policy update. We discuss the growing movement to save NASA science, how community action is ramping up, and what’s happening behind the scenes on Capitol Hill. 

And in What's Up with Bruce Betts, we explore some of the most recent NASA spinoffs, technologies developed for space that are making life better here on Earth.

Discover more at: https://www.planetary.org/planetary-radio/2025-space-science-under-fire

As debates over NASA's future heat up, questions about the value of space exploration are popping up everywhere. This week on Planetary Radio, we're tackling the tough questions head-on with The Planetary Society's staff, including Casey Dreier, chief of space policy, and Ambre Trujillo, digital community manager. They break down the biggest misconceptions about space science, public versus private investment, and why exploration still matters in an ever-changing world.&nbsp;
Then Jack Kiraly, director of government relations, joins us for a space policy update. We discuss the growing movement to save NASA science, how community action is ramping up, and what&rsquo;s happening behind the scenes on Capitol Hill.&nbsp;
And in What's Up with Bruce Betts, we explore some of the most recent NASA spinoffs, technologies developed for space that are making life better here on Earth.
Discover more at:&nbsp;<a href="https://www.planetary.org/planetary-radio/2025-space-science-under-fire">https://www.planetary.org/planetary-radio/2025-space-science-under-fire</a>

We tackle the biggest questions about NASA's value, space exploration, and why public investment matters. Join us for a Q&A with Casey Dreier and Ambre Trujillo, and a space policy update with Jack Kiraly.

Legendary Space Physics Pioneer Margaret Kivelson

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