Podcasts about The Planetary Society

The Los Angeles Astronomical Society (LAAS) is one of the oldest and largest amateur astronomy clubs in the United States, and this year, it’s turning 100. To mark the occasion, the LAAS threw a centennial star party on the lawn of Griffith Observatory, featuring 100 telescopes, a dedication ceremony, and a community of passionate skywatchers who showed up rain and all. In this episode, we sit down with Laura-May Abron, vice president of the Los Angeles Astronomical Society and chair of its Centennial Committee, to discuss what it took to put together the event. We drop into the centennial dedication ceremony to hear from LAAS President Keith Armstrong and Griffith Observatory Director Ed Krupp. We also spend time with some of the remarkable members who make this community what it is, including LAAS historian Louis Chilton, who has been a member for over 60 years, research scientist and LAAS member Bryce Bolin, self-taught optician and telescope builder Jeff Schroeder, and Geo Somoza, volunteer at The Planetary Society and one of the people who has dedicated his life to showing others the sky. Plus, Bruce Betts joins us for What's Up and a look at what you can spot in the night sky in June. Discover more at: https://www.planetary.org/planetary-radio/2026-laas-centennial See omnystudio.com/listener for privacy information.

The Planetary Society's 2026 Day of Action brought something new this year. For the very first time, the advocacy day was followed by a showcase of NASA funded science in an event called Igniting Discovery. Host Sarah Al-Ahmed speaks with Jack Kiraly, Director of Government Relations at the Planetary Society, about how the event came together, and with first-time advocate Julianna Charlene Kolczynski, whose passion for space traces back to her grandfather's dreams. Megan McKeown, Director of Governmental Affairs at the Association of Public and Land-Grant Universities, opens the event. Then we hear from the scientists themselves: Blake Schreurs of the Johns Hopkins Applied Physics Laboratory, planetary scientist Kirby Runyon of the Planetary Science Institute, Christine McCarthy of Columbia University's Lamont-Doherty Earth Observatory, Brent McBride of the University of Maryland Baltimore County, biomechanics PhD student Liliana Delgado of the University of Nebraska Omaha, and science communicator Sarah Treadwell, also known as Space Case Sarah. Planetary Society member Ari Gozlan closes with a reflection on what it means to celebrate science after the Day of Action. Plus, Chief Scientist Bruce Betts joins Sarah for What's Up. Discover more at: https://www.planetary.org/planetary-radio/2026-igniting-discoverySee omnystudio.com/listener for privacy information.

The Science Guy is here! Bill Nye joins Dial the Gate to discuss current topics in the science community, his work at the Planetary Society and share memories of playing a version of himself in Stargate Atlantis Season Five's "Brain Storm!"

Every year, members of The Planetary Society travel to Washington, D.C., to make their voices heard on Capitol Hill. This year, just days after the Artemis II crew splashed down off the coast of San Diego, the Presidential Budget Request dropped once more, proposing a 46% cut to NASA's science budget. Planetary Radio host Sarah Al-Ahmed was on the ground capturing the passion, the preparation, and the people behind one of the largest Days of Action in the Planetary Society's history. In this episode, we hear from Bill Nye, Planetary Society chief ambassador. Sarah speaks with Planetary Society CEO Jenn Vaughn, charter members and advocates David Johnson and Philip Shane, healthcare researcher and human factors scientist Gabe Segarra, astrobiologist and postdoctoral fellow at Carnegie Science Earth & Planets Laboratory Michael Wong, and Colossus Computing CEO Jason Cerundolo and CTO Alex Swehla. Plus, Chief Scientist Bruce Betts joins us for What's Up, where we discuss the missions at stake if NASA's science budget is cut. Discover more at: https://www.planetary.org/planetary-radio/2026-day-of-actionSee omnystudio.com/listener for privacy information.

When Artemis II returned its crew safely to Earth, millions of people found themselves unexpectedly moved. The mission was a test flight, a proof-of-concept, and yet it felt like something far greater than the sum of its parts. In this episode, Casey Dreier, chief of space policy at The Planetary Society, sits down with Rebecca Lowe, philosophy senior fellow at the Mercatus Center at George Mason University, to explore the deeper meaning of humanity's return to deep space. Drawing on philosophy of mind, aesthetics, and theories of value, they unpack why human presence in space feels fundamentally different from even the most sophisticated robotic mission, and why that difference matters. Discover more at: https://www.planetary.org/planetary-radio/spe-philosophy-of-artemis-iiSee omnystudio.com/listener for privacy information.

Jake and Anthony are joined by Jennifer Vaughn, the new CEO of The Planetary Society to talk about her vision for the organization. Topics Off-Nominal - YouTube Episode 239 - Let's Go Swimming (with Jennifer Vaughn) - YouTube The Planetary Society Meet Jennifer Vaughn | The Planetary Society Days after Artemis II, scientists warn of… | The Planetary Society The FY 2027 NASA budget request | The Planetary Society Follow Off-Nominal Subscribe to the show! - Off-Nominal Support the show, join the Discord Off-Nominal (@offnom) / Twitter Off-Nominal (@offnom@spacey.space) - Spacey Space Follow Jake WeMartians Podcast - Follow Humanity's Journey to Mars WeMartians Podcast (@We_Martians) | Twitter Jake Robins (@JakeOnOrbit) | Twitter Jake Robins (@JakeOnOrbit@spacey.space) - Spacey Space Follow Anthony Main Engine Cut Off Main Engine Cut Off (@WeHaveMECO) | Twitter Main Engine Cut Off (@meco@spacey.space) - Spacey Space Anthony Colangelo (@acolangelo) | Twitter Anthony Colangelo (@acolangelo@jawns.club) - jawns.club

Casey Dreier, chief of space policy at The Planetary Society, sits down with Rebecca Lowe, philosophy senior fellow at the Mercatus Center at George Mason University, to explore why human presence in space is so different from robotic missions, and why that difference matters.

As you have doubtless heard, the White House has once again proposed drastic budget cuts of about 24% for NASA's 2027 budget. It's deja vu all over again for us, as we followed an almost identical story last year. And as with last year, Congress has signaled the new budget to be DOA. This time, however, we had a NASA administrator in the seat when this budget arrived and he said he could work with it—despite a near halving of the NASA science budget and proposed cancellation of well over 50 science missions, many already successful and returning great science after the bulk of the program has been paid for. We invited Jenniter Vaughn, the CEO of The Planetary Society, onto the show to discuss. Headlines: Blue Origin's New Glenn 3 Rocket Fails Key Mission Despite Successful Landin Discovery of Possible Hidden Moons Around Uranus in Planetary Rings Hubble Space Telescope Celebrates Its 36th Year in Orbit Main Topic: NASA Science Budget Crisis and Advocacy with Planetary Society CEO Jennifer Vaughn Jennifer Vaughn's Journey to Leading the Planetary Society Deep Cuts Proposed for NASA's Science Budget and Widespread Opposition Congressional Pushback and Ineffectiveness of Copy-Paste Budget Proposals Risks to Active and Developmental NASA Missions if Funding Slashed Brain Drain and Damage from Funding Instability at NASA and Partner Institutions Importance of Public Advocacy and Opportunities to Take Action Prospects and Cautions for New NASA Leadership Amid Budget Challenges Broader Impact on US Space Leadership, Innovation, and Long-Term Planning Hosts: Rod Pyle and Tariq Malik Guest: Jennifer Vaughn Download or subscribe to This Week in Space at https://twit.tv/shows/this-week-in-space. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit

As you have doubtless heard, the White House has once again proposed drastic budget cuts of about 24% for NASA's 2027 budget. It's deja vu all over again for us, as we followed an almost identical story last year. And as with last year, Congress has signaled the new budget to be DOA. This time, however, we had a NASA administrator in the seat when this budget arrived and he said he could work with it—despite a near halving of the NASA science budget and proposed cancellation of well over 50 science missions, many already successful and returning great science after the bulk of the program has been paid for. We invited Jenniter Vaughn, the CEO of The Planetary Society, onto the show to discuss. Headlines: Blue Origin's New Glenn 3 Rocket Fails Key Mission Despite Successful Landin Discovery of Possible Hidden Moons Around Uranus in Planetary Rings Hubble Space Telescope Celebrates Its 36th Year in Orbit Main Topic: NASA Science Budget Crisis and Advocacy with Planetary Society CEO Jennifer Vaughn Jennifer Vaughn's Journey to Leading the Planetary Society Deep Cuts Proposed for NASA's Science Budget and Widespread Opposition Congressional Pushback and Ineffectiveness of Copy-Paste Budget Proposals Risks to Active and Developmental NASA Missions if Funding Slashed Brain Drain and Damage from Funding Instability at NASA and Partner Institutions Importance of Public Advocacy and Opportunities to Take Action Prospects and Cautions for New NASA Leadership Amid Budget Challenges Broader Impact on US Space Leadership, Innovation, and Long-Term Planning Hosts: Rod Pyle and Tariq Malik Guest: Jennifer Vaughn Download or subscribe to This Week in Space at https://twit.tv/shows/this-week-in-space. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit

As you have doubtless heard, the White House has once again proposed drastic budget cuts of about 24% for NASA's 2027 budget. It's deja vu all over again for us, as we followed an almost identical story last year. And as with last year, Congress has signaled the new budget to be DOA. This time, however, we had a NASA administrator in the seat when this budget arrived and he said he could work with it—despite a near halving of the NASA science budget and proposed cancellation of well over 50 science missions, many already successful and returning great science after the bulk of the program has been paid for. We invited Jenniter Vaughn, the CEO of The Planetary Society, onto the show to discuss. Headlines: Blue Origin's New Glenn 3 Rocket Fails Key Mission Despite Successful Landin Discovery of Possible Hidden Moons Around Uranus in Planetary Rings Hubble Space Telescope Celebrates Its 36th Year in Orbit Main Topic: NASA Science Budget Crisis and Advocacy with Planetary Society CEO Jennifer Vaughn Jennifer Vaughn's Journey to Leading the Planetary Society Deep Cuts Proposed for NASA's Science Budget and Widespread Opposition Congressional Pushback and Ineffectiveness of Copy-Paste Budget Proposals Risks to Active and Developmental NASA Missions if Funding Slashed Brain Drain and Damage from Funding Instability at NASA and Partner Institutions Importance of Public Advocacy and Opportunities to Take Action Prospects and Cautions for New NASA Leadership Amid Budget Challenges Broader Impact on US Space Leadership, Innovation, and Long-Term Planning Hosts: Rod Pyle and Tariq Malik Guest: Jennifer Vaughn Download or subscribe to This Week in Space at https://twit.tv/shows/this-week-in-space. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit

As you have doubtless heard, the White House has once again proposed drastic budget cuts of about 24% for NASA's 2027 budget. It's deja vu all over again for us, as we followed an almost identical story last year. And as with last year, Congress has signaled the new budget to be DOA. This time, however, we had a NASA administrator in the seat when this budget arrived and he said he could work with it—despite a near halving of the NASA science budget and proposed cancellation of well over 50 science missions, many already successful and returning great science after the bulk of the program has been paid for. We invited Jenniter Vaughn, the CEO of The Planetary Society, onto the show to discuss. Headlines: Blue Origin's New Glenn 3 Rocket Fails Key Mission Despite Successful Landin Discovery of Possible Hidden Moons Around Uranus in Planetary Rings Hubble Space Telescope Celebrates Its 36th Year in Orbit Main Topic: NASA Science Budget Crisis and Advocacy with Planetary Society CEO Jennifer Vaughn Jennifer Vaughn's Journey to Leading the Planetary Society Deep Cuts Proposed for NASA's Science Budget and Widespread Opposition Congressional Pushback and Ineffectiveness of Copy-Paste Budget Proposals Risks to Active and Developmental NASA Missions if Funding Slashed Brain Drain and Damage from Funding Instability at NASA and Partner Institutions Importance of Public Advocacy and Opportunities to Take Action Prospects and Cautions for New NASA Leadership Amid Budget Challenges Broader Impact on US Space Leadership, Innovation, and Long-Term Planning Hosts: Rod Pyle and Tariq Malik Guest: Jennifer Vaughn Download or subscribe to This Week in Space at https://twit.tv/shows/this-week-in-space. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit

He built a rocket-powered bike when he was a kid. Now he leads the company that has made New Zealand number three among nations that launch big rockets, following the United States and China. Sir Peter Beck joins us for a deeply revealing and entertaining conversation about “The Launch of Rocket Lab,” the beautiful book that tells his and Rocket Lab's inspiring story. His dedication to advancing planetary science missions will make members of The Planetary Society proud! Discover more at: https://www.planetary.org/planetary-radio/book-club-peter-beckSee omnystudio.com/listener for privacy information.

The Artemis II crew has returned home safely after a historic 10-day journey around the Moon, the first crewed lunar mission in over 50 years. In this episode, we celebrate some of the mission's most extraordinary moments: the record-breaking Flight Day 6 when Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialists Christina Koch and Jeremy Hansen traveled farther from Earth than any humans in history, a breathtaking solar eclipse observed from lunar orbit, meteorite impact flashes spotted on the lunar surface, and a deeply personal crater dedication that moved the world. But the triumph comes with turbulence. Just days after launch, the White House released a Presidential Budget Request proposing a 47% cut to NASA's science budget — threatening 84 missions and nearly half of NASA's science portfolio. Jack Kiraly, director of government relations at The Planetary Society, and Ari Koeppel, AAAS Science and Technology Policy Fellow, join host Sarah Al-Ahmed to break down what's at stake and what's being done about it. Plus, Chief Scientist Bruce Betts joins for this week's What's Up. Discover more at: https://www.planetary.org/planetary-radio/2026-artemis-ii-save-nasa-science See omnystudio.com/listener for privacy information.

On America at Night with McGraw Milhaven, Craig Sumner, retired NASA aerospace engineer and former Artemis II propulsion manager, joined the program to discuss the long road that led to NASA's Artemis II mission. Sumner explained the history of the Artemis program, the technological progress behind NASA's return to human deep-space missions, and how decades of engineering and testing are paving the way for astronauts to once again travel around the Moon. Next, Nikki Gerber, co-organizer for Ohio Residents for Responsible Development, discussed growing opposition to the construction of large data centers in parts of Ohio. Gerber explained concerns from residents about energy consumption, environmental impact, and the strain that large-scale tech infrastructure could place on local communities. Later, Dr. Bruce Betts, Chief Scientist and LightSail Program Manager for The Planetary Society, joined the show to talk about the Artemis II splashdown and what it means for the future of space exploration. Betts discussed how Artemis missions are setting the stage for Artemis III and eventually human missions to Mars, and why the success of these missions is critical for the future of human spaceflight. Finally, Theo Lewis Clark, the show's Hollywood Executive for a Day, returned for the weekly movie trivia segment, challenging McGraw and listeners with film questions and pop culture trivia. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Casey Dreier, Chief of Space Policy at The Planetary Society, joins Jake and Anthony to talk about the dichotomy of NASA right now: the Artemis II lunar flyby, and the FY2027 budget request. Topics Off-Nominal - YouTube Episode 236 - Juicy Red Fruits (with Casey Dreier) - YouTube What is the skinny budget and what does it… | The Planetary Society The Planetary Society urges Congress to… | The Planetary Society Save NASA Science Action Hub | The Planetary Society Charts and Data | The Planetary Society Follow Casey Casey Dreier | The Planetary Society The Planetary Society Follow Off-Nominal Subscribe to the show! - Off-Nominal Support the show, join the Discord Off-Nominal (@offnom) / Twitter Off-Nominal (@offnom@spacey.space) - Spacey Space Follow Jake WeMartians Podcast - Follow Humanity's Journey to Mars WeMartians Podcast (@We_Martians) | Twitter Jake Robins (@JakeOnOrbit) | Twitter Jake Robins (@JakeOnOrbit@spacey.space) - Spacey Space Follow Anthony Main Engine Cut Off Main Engine Cut Off (@WeHaveMECO) | Twitter Main Engine Cut Off (@meco@spacey.space) - Spacey Space Anthony Colangelo (@acolangelo) | Twitter Anthony Colangelo (@acolangelo@jawns.club) - jawns.club

What makes Cape Canaveral the center of U.S. spaceflight? The answer is a fascinating mix of geography, military strategy, Cold War politics, and a fair amount of historical accident. In this episode of the Space Policy Edition of Planetary Radio, host Casey Dreier, chief of space policy at The Planetary Society, sits down with Stephen C. Smith, author and writer behind the Substack The Space Pundit, to discuss his book Return to Launch: Florida and America's Space Industry. A longtime Kennedy Space Center Visitor Complex communicator and Merritt Island resident, Smith brings a unique perspective to the story of how a remote Florida peninsula became the gateway to the Cosmos. The conversation spans the full arc of Cape Canaveral's history, from captured Nazi V-2 rockets fired off a concrete slab in 1950, the Apollo era's dramatic economic boom and bust, and the rise of commercial spaceflight. Along the way, Smith and Dreier explore why Mexico's president inadvertently shaped U.S. launch site selection, how eminent domain built a spaceport, and what Space Florida did to help break the region's cycle of economic dependence on government programs.See omnystudio.com/listener for privacy information.

Casey Dreier, chief of space policy at The Planetary Society, sits down with Stephen C. Smith, author of Return to Launch and Kennedy Space Center Visitor Complex communicator, to explore how a remote Florida peninsula became the heart of U.S. spaceflight.

Artemis II is about more than getting four humans to the Moon and back. It's an opportunity to gather data on human health in deep space that we haven’t had in over 50 years. This week, we’re joined by Steve Platts, chief scientist of NASA's Human Research Program, who walks us through the suite of human health experiments flying aboard Artemis II, from the ARCHER wearable sensors tracking crew health and team dynamics, to dry saliva swabs measuring stress hormones. Then Casey Dreier, chief of space policy at The Planetary Society, helps us make sense of NASA's Ignition Day, a major press event held on March 24 in which the agency unveiled sweeping changes to its lunar exploration plans and beyond. And we close with Bruce Betts, chief scientist of The Planetary Society, in our weekly What's Up, where we explore one of the stranger phenomena in human spaceflight, the flashes of light astronauts sometimes see when cosmic rays pass through their eyes. Discover more at: https://www.planetary.org/planetary-radio/2026-astronaut-health-experiments-artemis-iiSee omnystudio.com/listener for privacy information.

Nearly 60 years after NASA sent the first humans to ever land on our moon, the U.S. is going back with a series of increasingly difficult missions. Horizons moderator William Brangham explores the Artemis program and what new discoveries NASA is hoping to find with PBS News science correspondent Miles O'Brien, Casey Dreier of The Planetary Society and retired astronaut and engineer Leroy Chiao. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Nearly 60 years after NASA sent the first humans to ever land on our moon, the U.S. is going back with a series of increasingly difficult missions. Horizons moderator William Brangham explores the Artemis program and what new discoveries NASA is hoping to find with PBS News science correspondent Miles O'Brien, Casey Dreier of The Planetary Society and retired astronaut and engineer Leroy Chiao. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Humanity is going back to the Moon, and Europe is already playing a critical role in making it happen. This week, Planetary Radio brings you voices straight from the 18th European Space Conference in Brussels, Belgium, where more than 2,000 of the world’s top space leaders gathered to shape the future of European space exploration. We begin with conference co-organizer Tomas Dimitrov of Logos and Business Bridge Europe, who sets the stage for the conversations ahead. From there, we hear from European Commissioner for Defence and Space Andrius Kubilius, ESA Director General Josef Aschbacher, French Minister Delegate for European Affairs Benjamin Haddad, and Germany’s Federal Space Minister Dorothee Bär. We also take you inside the Moonlight Initiative panel, bringing you the full conversation as scientists and engineers from ESA, NASA, and industry lay out their vision for building GPS and communications infrastructure around the Moon, and wrestle with what it will really take to support a permanent human presence there. Then, Planetary Society Chief Scientist Bruce Betts joins us for What’s Up to tackle one of the most fascinating and unexpected challenges of lunar exploration: what time is it on the Moon? Discover more at: https://www.planetary.org/planetary-radio/2026-european-space-conference See omnystudio.com/listener for privacy information.

Gentry Lee spent nearly five decades at NASA's Jet Propulsion Laboratory, and in that time he helped shape some of the most ambitious missions in the history of space exploration. A new documentary, “Starman,” chronicles his career and the big question that runs through it: is there life beyond Earth? Lee worked on every NASA mission to land on Mars, helped Carl Sagan bring the Universe to living rooms around the world with “Cosmos,” and oversaw dozens of active missions as Chief Engineer for the Solar System Exploration Directorate at JPL. Few people have had a front-row seat to the Space Age quite like him. In this episode, host Sarah Al-Ahmed sits down with Gentry at Planetary Society headquarters just one day after his retirement from JPL. He reflects on the colleagues who shaped him, the missions that changed our understanding of the Solar System, and why the search for life beyond Earth remains the most profound endeavor humanity has ever undertaken. Discover more at: https://www.planetary.org/planetary-radio/2026-starmanSee omnystudio.com/listener for privacy information.

The U.S. will soon launch a crewed ship to circle the moon and test equipment for takeoff and reentry, raising interesting questions about space exploration and the role of private companies. In this episode, co-host Darrell West is joined by Casey Dreier of the Planetary Society to discuss this mission and the China-U.S. rivalry over space. Hosted on Acast. See acast.com/privacy for more information.

Is the United States really in a new space race with China? Or is that framing missing the bigger picture? In this Space Policy Edition of Planetary Radio, Casey Dreier, chief of space policy at The Planetary Society, sits down with Patrick Besha, former NASA strategic advisor on China, to explore the realities behind China’s rapidly advancing space program. They discuss how China’s political system shapes its long-term space strategy, why the rhetoric about a “space race” may be misleading, and how competition between the United States and China in space is likely to unfold over the coming decades. Discover more at: https://www.planetary.org/planetary-radio/spe-us-china-space-raceSee omnystudio.com/listener for privacy information.

Casey Dreier, chief of space policy at The Planetary Society, speaks with former NASA strategic advisor on China, Patrick Besha, about China's long-term space strategy and what real competition in space may look like in the decades ahead.

NASA has announced a major restructuring of the Artemis program, reshaping the roadmap for returning humans to the Moon. At a February 27 press conference, agency leadership addressed the rollback of Artemis II following post–wet–dress–rehearsal testing and unveiled significant changes to upcoming missions, including shifting Artemis III from a planned lunar landing to a low-Earth-orbit rendezvous and integrated systems test. In this episode, you’ll hear remarks from NASA Administrator Jared Isaacman and Lori Glaze, Moon to Mars program manager and acting associate administrator for NASA’s Exploration Systems Development Mission Directorate. They explain what happened with Artemis II and why NASA is changing course. Then, host Sarah Al-Ahmed is joined by Jack Kiraly, director of government relations at The Planetary Society, and Ari Koeppel, AAAS science and technology policy fellow, to unpack the political and strategic forces behind this shift and what it means for the future of lunar exploration. In What’s Up, Bruce Betts, our chief scientist, looks back at Apollo 9, the Earth-orbiting mission that proved the Lunar Module could operate independently before NASA attempted a lunar landing. Discover more at: https://www.planetary.org/planetary-radio/2026-artemis-updateSee omnystudio.com/listener for privacy information.

Could a single ancient impact have briefly transformed one of the Solar System’s darkest moons into a cryovolcanic world? When Voyager 2 flew past Uranus in 1986, it captured the only close-up images we have of Umbriel, a heavily cratered, charcoal-dark satellite long considered geologically inactive. But one feature stands out: a bright ring inside the 131-kilometer-wide Wunda crater. In this episode, Sarah Al-Ahmed speaks with Adeene Denton, NASA postdoctoral program fellow at the Southwest Research Institute, about her team’s new study published in the Journal of Geophysical Research: Planets. Using shock physics simulations, Denton and her colleagues reconstruct the impact that formed Wunda crater to determine what Umbriel’s interior must have been like at the time. Their modeling explores whether impact-induced cryovolcanism can explain the bright deposits observed on the crater floor. Then, in What’s Up, Bruce Betts, chief scientist of The Planetary Society, joins Sarah to break down one of the key mechanisms that keeps icy moons from freezing solid, tidal heating driven by orbital resonance. Discover more at: https://www.planetary.org/planetary-radio/2026-cryovolcanism-on-umbrielSee omnystudio.com/listener for privacy information.

They informed and entertained together throughout the first 20 years of Planetary Radio. Listen in as the Society’s chief scientist and book club edition host Mat Kaplan share the mic once again for a delightful conversation about Dr. Betts’ two new space books for young people. “Are We Alone?” introduces the search for life across the Universe, while “The Size of Space” collects many of Bruce’s brilliant and hilarious ways to cut our Solar System down to human size. Discover more at: https://www.planetary.org/planetary-radio/book-club-bruce-bettsSee omnystudio.com/listener for privacy information.

This week on Planetary Radio, we mark a major leadership transition at The Planetary Society. Host Sarah Al-Ahmed sits down with Bill Nye, outgoing chief executive officer and newly appointed chief ambassador of The Planetary Society, and Jennifer Vaughn, incoming chief executive officer and former chief operating officer, for a candid conversation about this long-planned transition. Together, Bill and Jenn reflect on how the organization, under their shared leadership, grew into the world’s largest and most effective nonprofit dedicated to advancing the scientific exploration of space. Then, Bruce Betts, chief scientist of The Planetary Society, joins Sarah for What’s Up. They discuss an upcoming planetary alignment on and around February 28, 2026. Discover more at: https://www.planetary.org/planetary-radio/2026-jennifer-vaughn-ceoSee omnystudio.com/listener for privacy information.

What does a NASA authorization bill actually do, and why does it matter? In this episode of Space Policy Edition, we dig into one of the most misunderstood but powerful tools Congress uses to shape the future of U.S. space exploration. Host Casey Dreier, chief of space policy at The Planetary Society, is joined by Jack Kiraly, the Society’s director of government relations, for a deep dive into how NASA authorization bills work, how they differ from appropriations, and why they can have decades-long consequences for science missions, human spaceflight, and planetary defense. The discussion also reflects on a major recent win for space advocates: Congress’s bipartisan decision to protect NASA science funding. Discover more at: https://www.planetary.org/planetary-radio/spe-what-is-a-nasa-authorization-billSee omnystudio.com/listener for privacy information.

What if Europa’s seafloor isn’t alive with activity after all? This week on Planetary Radio, host and producer Sarah Al-Ahmed explores new research that reframes how scientists think about one of the Solar System’s most intriguing ocean worlds. Sarah is joined by Paul Byrne, associate professor of earth, environmental, and planetary sciences at Washington University in St. Louis. Paul is the lead author of a new study suggesting that the seafloor beneath Europa’s global ocean may be geologically quiet today, potentially lacking the hydrothermal activity often associated with habitable environments on Earth. Together, they discuss how scientists investigate places we can’t yet observe directly and why Europa remains a compelling world to explore regardless of what we find. Then, Bruce Betts, chief scientist of The Planetary Society, joins us for What’s Up to explain why Saturn’s moon Enceladus shows strong evidence for active hydrothermal vents beneath its icy crust, offering a fascinating contrast between two ocean worlds. Discover more at: https://www.planetary.org/planetary-radio/2026-europas-quiet-seafloorSee omnystudio.com/listener for privacy information.

Humans are preparing to return to the Moon. On this episode of Planetary Radio, host Sarah Al-Ahmed is joined by Kelsey Young and Noah Petro, two of the scientists helping turn humanity’s return to the Moon into reality. Kelsey Young is a research space scientist at NASA Goddard Space Flight Center and serves as the Artemis Science Flight Operations Lead. She also leads the Lunar Observations and Imaging Campaign for Artemis II, defining what astronauts will observe, document, and study as they fly around the Moon for the first time in more than 50 years. Noah Petro is the lab chief of the Planetary Geology, Geophysics, and Geochemistry Laboratory at NASA Goddard and the Project Scientist for the Lunar Reconnaissance Orbiter. He also serves as the Project Scientist for Artemis III, helping shape the science behind humanity’s first lunar footsteps of the 21st century. Together, they discuss how Artemis II and Artemis III build on decades of lunar science, how astronauts are being trained to observe the Moon like geologists, and why the Moon’s south pole is such a compelling destination for future exploration. Then, we wrap up with What’s Up, where Bruce Betts, chief scientist of The Planetary Society, shares the story of the first and so far only professional geologist to walk on the Moon. Discover more at: https://www.planetary.org/planetary-radio/2026-artemis-ii-and-iiiSee omnystudio.com/listener for privacy information.

Casey Dreier of The Planetary Society joins me to talk about the NASA FY2026 budget, the early days of the Administrator Isaacman era, and how we feel going into Artemis II.This episode of Main Engine Cut Off is brought to you by 33 executive producers—Matt, Fred, Will and Lars from Agile, Kris, Lee, Jan, Frank, Miles O'Brien, Josh from Impulse, Theo and Violet, Ryan, Joakim, Stealth Julian, Heiko, Tim Dodd (the Everyday Astronaut!), Better Every Day Studios, Joel, Steve, Joonas, The Astrogators at SEE, Pat, Warren, Natasha Tsakos, Russell, David, Donald, and four anonymous—and hundreds of supporters.TopicsCasey Dreier | The Planetary SocietyThe Planetary SocietyYou just saved NASA's budget | The Planetary Society2025 Impact Report | The Planetary SocietyThe ShowLike the show? Support the show on Patreon or Substack!Email your thoughts, comments, and questions to anthony@mainenginecutoff.comFollow @WeHaveMECOFollow @meco@spacey.space on MastodonListen to MECO HeadlinesListen to Off-NominalJoin the Off-Nominal DiscordSubscribe on Apple Podcasts, Overcast, Pocket Casts, Spotify, Google Play, Stitcher, TuneIn or elsewhereSubscribe to the Main Engine Cut Off NewsletterArtwork photo by Blue OriginWork with me and my design and development agency: Pine Works

After months of uncertainty, NASA science has been spared from the largest proposed budget cuts in the agency’s history. In this episode of Planetary Radio, host Sarah Al-Ahmed unpacks how Congress moved to restore near-full funding for NASA science and what that victory really means for missions, researchers, and the future of space exploration. Sarah is joined by Jack Kiraly, director of government relations at The Planetary Society, and Ari Koeppel, an AAAS science & technology policy fellow at The Planetary Society, to break down what passed in the FY 2026 budget, why the details matter, and how bipartisan support helped protect science programs across planetary science, astrophysics, Earth science, and heliophysics. The conversation also takes an honest look at the costs of the past year, from lost jobs and disrupted missions to shaken morale, and why rebuilding NASA’s scientific workforce will take time, even after this hard-won win. We also look ahead to what comes next as the FY 2027 budget process begins, and why sustained public engagement remains essential to protecting space science. Plus, Bruce Betts, chief scientist of The Planetary Society, joins us for What’s Up, where we discuss the recent early return of astronauts from the International Space Station, what’s known about the situation, and what it means for station operations. Discover more at: https://www.planetary.org/planetary-radio/2026-nasa-science-savedSee omnystudio.com/listener for privacy information.

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 explore the science of the heliosphere and the realm beyond with Linda Spilker, project scientist for the Voyager mission at NASA Jet Propulsion Laboratory. Drawing on decades of experience with the twin spacecraft, Spilker shares how Voyager reshaped our view of the Solar System’s outer frontier, from the nature of the heliopause to the unexpectedly rich structure of the local interstellar medium. We unpack what Voyager 1 and Voyager 2 have taught us about charged particles, magnetic fields, and cosmic rays beyond the Sun’s protective bubble, and why those measurements have upended earlier ideas about where the Solar System truly ends. Spilker also reflects on the mission’s extraordinary longevity, the ingenuity required to keep the spacecraft communicating across the vastness of space, and what Voyager’s legacy means for future journeys between the stars. Then, in What’s Up, Bruce Betts, chief scientist at The Planetary Society, places Voyager in context, showing how long-lived missions shape the bigger picture of space science and why observing longer can lead to some of our most profound discoveries. Discover more at: https://www.planetary.org/planetary-radio/2026-voyagers-and-the-heliopauseSee omnystudio.com/listener for privacy information.

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 science forward through it all. In this episode, Sarah Al-Ahmed, host and producer of Planetary Radio, is joined first by Kate Howells, public education specialist at The Planetary Society, to share results from The Planetary Society’s Best of 2025 campaign and the newly released 2025 Year in Pictures edition of The Planetary Report. They discuss the images, missions, and accomplishments voted on by the global space community, and how space imagery continues to inspire curiosity, connection, and hope. Then, Sarah sits down with Mat Kaplan, senior communications advisor, Asa Stahl, science editor, and Ambre Trujillo, digital community manager at The Planetary Society, for a wide-ranging conversation about the defining space exploration stories of 2025. The episode closes with Bruce Betts, chief scientist of The Planetary Society, in What’s Up, where he looks ahead to what’s coming in 2026. Discover more at: https://www.planetary.org/planetary-radio/2025-looking-back-space-explorationSee omnystudio.com/listener for privacy information.

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 science programs. With nearly half of NASA’s science budget at risk, dozens of missions threatened, and months of leadership uncertainty at the agency, this year became a defining moment for the future of space science. Sarah Al-Ahmed is joined by Casey Dreier, chief of space policy at The Planetary Society, Jack Kiraly, director of government relations, and Ari Koeppel, an AAAS science & technology policy fellow, to unpack how this crisis unfolded and how scientists, space advocates, and lawmakers responded. Together, they explore how public advocacy helped shift the conversation in Congress. Plus, in What’s Up, Chief Scientist Bruce Betts explains why stability matters so much for space science and what’s at stake when long-term missions are disrupted. This is the first of two special year-end episodes. Next week, Planetary Radio will look back at what humanity accomplished in space exploration in 2025, from new missions and discoveries to milestones across our Solar System and beyond. Discover more at: https://www.planetary.org/planetary-radio/2025-looking-back-space-policy-and-advocacySee omnystudio.com/listener for privacy information.

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 and book club host Mat Kaplan for a journey taking us from our own Moon, past Europa, Titan, and many more, and out across a galaxy that is no doubt full of worlds circling other worlds. Discover more at: https://www.planetary.org/planetary-radio/book-club-kate-howellsSee omnystudio.com/listener for privacy information.

The 2025 International Mars Society Convention convened at the University of Southern California this October for three days of passionate discussion about humanity’s future on the red planet. Speakers explored science, policy, technology, AI, synthetic biology, and the long-term path toward becoming a multi-planet species. In this episode, Mat Kaplan, senior communications adviser at The Planetary Society, shares his conversations with speakers and guests at the Convention. We hear from Robert Zubrin, founder of The Mars Society, who delivered a fiery call to protect NASA’s science programs in the face of unprecedented budget cuts. Humphrey “Hoppy” Price, Chief Engineer for NASA’s Robotic Mars Exploration Program at the Jet Propulsion Laboratory, updates us on the future of Mars Sample Return and new mission architectures. Keynote speaker Dex Hunter-Torricke, a longtime communications leader for SpaceX, Meta, and other major tech organizations, reflects on AI’s promise and peril, and why Mars remains a beacon of hope for humanity’s future. Biologist and technologist Tiffany Vora, vice president for innovation partnerships at Explore Mars, and Erika DeBenedictis, biologist and founder of Pioneer Labs, reveal breakthroughs in synthetic biology and engineered microbes that could help future Martians survive. Steve Benner, chemist and founder of the Foundation for Applied Molecular Evolution (FfAME), revisits the Viking lander experiments and makes a provocative case that we may have found Martian life nearly 50 years ago. Architect Melodie Yashar, CEO of AENARA and a pioneer in 3D-printed habitat research, shares progress in additive construction on Earth and Mars. James Burk, executive director of The Mars Society, discusses advocacy, analog research stations, and the organization’s expanding international footprint. Finally, we meet Sasha, a 13-year-old presenter whose enthusiasm offers a bright glimpse of the next generation of explorers. We wrap up the show with What’s Up with Bruce Betts, chief scientist at The Planetary Society, with a discussion of perchlorates in the Martian soil. Discover more at: https://www.planetary.org/planetary-radio/2025-mars-society-conventionSee omnystudio.com/listener for privacy information.

NASA’s twin ESCAPADE spacecraft have finally launched on their journey to Mars. Designed to study how the solar wind interacts with Mars’ patchy magnetic fields and drives the loss of its atmosphere, ESCAPADE is NASA’s first dual-spacecraft mission to the Red Planet and a major milestone for the SIMPLEx program’s small, low-cost planetary explorers. The mission began its voyage aboard Blue Origin’s New Glenn rocket after several weather and space weather delays, marking the vehicle’s first science launch. We begin with Ari Koeppel, AAAS Science & Technology Policy Fellow and Space Policy Intern at The Planetary Society, who was at Cape Canaveral for the prelaunch activities. Ari shares what it was like to navigate repeated scrubs and even a powerful solar storm, along with the emotional experience of watching a spacecraft carrying an instrument he helped build begin its voyage to Mars. Next, we are joined by Dr. Rob Lillis, ESCAPADE’s Principal Investigator and Associate Director for Planetary Science at UC Berkeley’s Space Sciences Laboratory. Rob explains how ESCAPADE aims to unravel Mars’ complex space environment using two coordinated orbiters, why its measurements are key to understanding atmospheric escape, and how its innovative trajectory made the mission possible after the loss of its original rideshare opportunity. Finally, Dr. Bruce Betts, Chief Scientist of The Planetary Society, returns for What’s Up to talk about why Mars produces aurora even without a global magnetic dynamo. Discover more at: https://www.planetary.org/planetary-radio/2025-escapadeSee omnystudio.com/listener for privacy information.

This week on Planetary Radio, we’re sharing a special conversation from our friends at the Smart Girl Dumb Questions podcast. Host Nayeema Raza sits down with The Planetary Society’s Chief of Space Policy, Casey Dreier, to explore one of the most common questions in space exploration: Why does space matter, and is it really worth the cost? Casey breaks down how space exploration impacts daily life, from GPS and weather forecasting to cutting-edge technologies and scientific discoveries that could reshape our future. Together, Nayeema and Casey unpack the big ideas behind NASA’s ~$25 billion budget at a moment when U.S. national priorities are shifting. Stick around after the interview for a special U.S. Thanksgiving-week edition of What’s Up with Chief Scientist Bruce Betts. Discover more at: https://www.planetary.org/planetary-radio/2025-smart-girl-dumb-questionsSee omnystudio.com/listener for privacy information.

Space: the final frontier, a deep dark realm full of questions and mysteries - many of which science can't yet satisfactorily answer. But that won't stop the Curious Cases team!In a special edition recorded in front of an audience at the BBC Radio Theatre in London, Hannah Fry and Dara Ó Briain team up with a panel of guests who know their way around the universe: presenters from the world's longest running science TV show, The Sky At Night.With the intergalactic expertise of George Dransfield, Chris Lintott and Maggie Aderin-Pocock, Hannah and Dara tackle a slew of space-related questions put forward by the listeners - exploring topics ranging from the sound of stars and the shape of the universe, to the search for alien life. To submit your question to the Curious Cases team, please email: curiouscases@bbc.co.ukSPACE AUDIO CLIPS:- Maggie's Choice: In 2005, the European Space Agency's Huygens probe descended to the surface of Saturn's moon Titan. Microphones aboard Huygens recorded the sounds of descent and landing, then The Planetary Society and scientists at the University of California helped ESA process the audio. CREDIT: European Space Agency (Huygens probe) / HASI-PWA Team (instrument and data) / The Planetary Society (processing)- George's Choice: The black hole at the centre of the Perseus galaxy cluster has been associated with sound for years, since astronomers discovered that pressure waves sent out by the black hole caused ripples in the cluster's hot gas that could be translated into a note. This new sonification was released for NASA's Black Hole Week in 2022. CREDIT: NASA- Chris's Choice: In 2023, the Planck space telescope picked up echoes left by soundwaves that travelled through the early Universe. This primordial hum was then translated into frequencies we can hear. CREDIT: NASAProducer: Lucy Taylor Executive Producer: Alexandra Feachem A BBC Studios Production

The Planetary Society heads to TwitchCon 2025 to explore how scientists and educators use livestreaming to share the excitement of discovery. We begin with Moohoodles, one of Twitch’s pioneering space science streamers and co-host of the live panel “The Planetary Society: Space, Time, and You.” She explains how she built a thriving community around astrobiology and space exploration long before Twitch even had a Science & Technology category. Then we share moments from the panel, featuring a special video message from Bill Nye, CEO of The Planetary Society, and highlights of how livestreaming helps inspire new audiences to look up. At the Science & Technology Meet and Greet, Sharkg33k and Paleontologizing explain how their streams connect life on Earth to exploration beyond our planet. Later, Jack Kiraly, The Planetary Society’s Director of Government Relations, joins the show for a Space Policy Update on Jared Isaacman’s renomination as NASA Administrator, examining what it could mean for the agency’s leadership and direction. The episode wraps up with What’s Up with Bruce Betts, The Planetary Society’s chief scientist, celebrating the third anniversary of the end of the LightSail 2 mission and sharing a new random space fact. Discover more at: https://www.planetary.org/planetary-radio/2025-twitchconSee omnystudio.com/listener for privacy information.

In 1996, a controversial claim of fossilized life in a Martian meteorite ignited a golden age of Mars exploration. Nearly 30 years later, a potential biosignature detected by the Perseverance rover at Jezero Crater has sparked…nothing, not even a formal effort to revive the beleaguered robotic Mars Sample Return project. Why did the claims surrounding the Allan Hills meteorite (which were ultimately rejected) kick off 25 years of unprecedented robotic exploration of the Red Planet? And why did the discovery at Cheyava Falls fail to ignite the same level of interest? Lou Friedman, former Executive Director of The Planetary Society and longtime proponent of Mars Sample Return, joins the show to contrast these to tipping points of Mars exploration, and argues why space scientists should seize this discovery to push for a scientific future at the Red Planet. Discover more at: https://www.planetary.org/planetary-radio/spe-lou-friedman-on-msr-and-tipping-point-eventsSee omnystudio.com/listener for privacy information.

What happens in space doesn’t stay in space. Historian Dagomar Degroot joins Planetary Radio host Sarah Al-Ahmed to explore how shifting solar cycles, volcanic eruptions on Venus, Martian dust storms, and even mistaken sightings of lunar forests have influenced life, science, and society on Earth. His new book, “Ripples on the Cosmic Ocean: An Environmental History of Our Place in the Solar System,” reframes the Solar System as part of our cosmic environment, one that has shaped humanity’s past and will define our future. Then, Planetary Society Director of Government Relations Jack Kiraly updates us on the latest developments in space policy, including the ongoing search for NASA’s next administrator and proposed changes to the Artemis program’s launch vehicles. And stick around for Bruce Betts, The Planetary Society’s chief scientist, in What’s Up. Discover more at: https://www.planetary.org/planetary-radio/2025-ripples-on-the-cosmic-oceanSee omnystudio.com/listener for privacy information.

How can we build a new Moon program while slashing science funding? Bill Nye takes the host's chair alongside Chuck Nice to tackle one of the most urgent issues facing our future in space with Casey Dreier, Chief of Space Policy at The Planetary Society, who's been tracking and analyzing NASA's funding for years. NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free here: https://startalkmedia.com/show/bill-nye-takeover/Thanks to our Patrons anthonee rolfson, David Moncsko, 7Linden7, Kyle Meserve, Nancy Kimmel, Marc Gardiner, Carl Cheshire, El Mero Chingón Daniel Shin, Daniel Fisher, Christopher Crider, pintos dabeans, Alfric, Ry Guy, Juan Roa, Ph1lycheez, John4Disney, Esther Klein, Mako, Matthew Schuller, Alison L Bentley, Spencer Dohm, Brandon, David Yamanoha, Yash Goyal, Emily Hendrix, Mick W, Darin Wagner, Grant Cameron, Cheryl Courtright from Spring TX, Yonatan Gher, Edward Martin, erin grant, Emilio Martinez-Cordero, Nathan Trent, Pat D, Daniel Nicgorski, Alvan Mbongo, Colin Zwicker, Grand One, Adam, ubanamie320., Eric Mill, Aikya, Sean Dalglish, brian rowley, Philip, Quentin Walker, david smith, John Dusenberry, Karina Szalaiova, Ycros, Karel Netusil, Joe M, Rossell E Cameron, Gary Weber, Major King, david powell, Six String Sam, milky, Alyssa Solis, Wrama, Deanna Szwarc, Anthony Wiseman, Veronica Tash, Carrie Wilson-Bridges, Sebastian Cruz, Rhyskel, Kendra Meinert Hodson, princess, Jessy Kaiser, Anand Raman, Lance Davis, Yvonne S McCool, cameron campbell, Gene Davis, Greg, Micheal Jarka, Jenn [Z3120], Mark Lineberger, Jimmy Walker, Noëllie Newcastle, Andrew Nolen, Andrwnick, David Harrold, Vicki, Kaelyn P, and Kevin Staley for supporting us this week. Subscribe to SiriusXM Podcasts+ to listen to new episodes of StarTalk Radio ad-free and a whole week early.Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

In this second installment of Planetary Radio’s coverage from the 2025 NASA Innovative Advanced Concepts Symposium in Philadelphia, Pennsylvania, host Sarah Al-Ahmed highlights more of the technologies presented by the NIAC fellows. Mary Knapp of MIT Haystack Observatory shares her team’s Great Observatory for Long Wavelengths project, a space-based radio array designed to detect magnetic fields around distant exoplanets. Michael Hecht, also from MIT Haystack Observatory and principal investigator for the MOXIE experiment on NASA’s Perseverance rover, discusses Exploring Venus with Electrolysis, a concept that could turn Venus’s dense atmosphere into fuel for long-duration flight and exploration. Benjamin Hockman from NASA’s Jet Propulsion Laboratory introduces two projects: Gravity Poppers, tiny hopping probes that could map the interiors of asteroids and comets, and his team’s concept for a Venus balloon observatory. Finally, Justin Yim from the University of Illinois Urbana-Champaign presents LEAP, a legged robot designed to hop through the icy plumes of Saturn’s moon Enceladus in search of clues to its hidden ocean. Then stay tuned for What’s Up with Dr. Bruce Betts, chief scientist of The Planetary Society. Discover more at: https://www.planetary.org/planetary-radio/2025-niac-symposium-part-2See omnystudio.com/listener for privacy information.

Each year, NASA’s Innovative Advanced Concepts program (NIAC) funds visionary ideas that could shape the future of space exploration. In this first of two episodes from the 2025 NIAC Symposium in Philadelphia, Pennsylvania, USA, Planetary Radio host Sarah Al-Ahmed introduces some of the concepts presented at this year’s event. You’ll hear from Martin Bermudez and Josh Simpson from Skyeports LLC. Bermudez is the company’s CEO and principal investigator for the LUNGS Project, and Simpson is a glass artist and co-investigator. Together, their team is exploring how to build glass-blown lunar habitats from melted Moon dust. You’ll also meet Christine Gregg, research engineer at NASA’s Ames Research Center, who’s developing architected metamaterials to stabilize giant space structures. And finally, John Mather, Nobel laureate and senior astrophysicist at NASA’s Goddard Space Flight Center, shares his team’s work on an inflatable starshade that could help us see Earth-like worlds around distant stars. Then stick around for What’s Up with Dr. Bruce Betts, chief scientist of The Planetary Society. Discover more at: https://www.planetary.org/planetary-radio/2025-niac-symposium-part-1See omnystudio.com/listener for privacy information.

On October 6, 2025, hundreds of space advocates from across the United States joined The Planetary Society and 20 partner organizations on Capitol Hill to deliver one clear message: protect NASA’s science budget. We begin with Ari Koeppel, AAAS Science & Technology Policy Fellow and Space Policy Intern at The Planetary Society, who shares why this moment matters for scientists facing uncertainty about their future. Then Britney Schmidt, planetary scientist at Cornell University and member of The Planetary Society’s Board of Directors, calls in from Washington, D.C., to share what it’s like on the ground as hundreds of advocates come together to defend the future of space science. Next, we take you to the press conference on the steps of the U.S. Capitol, featuring Bill Nye, CEO of The Planetary Society, Representative Glenn Ivey of Maryland’s 4th District, Marcel Agüeros, president-elect of the American Astronomical Society, and Brandon Jones, President of the American Geophysical Union. Together, they urge Congress to restore NASA’s science funding and maintain the United States' leadership in discovery. We close with Casey Dreier, chief of space policy at The Planetary Society, reflecting on the power of grassroots advocacy and what comes next for the Save NASA Science campaign. Finally, in What’s Up, Bruce Betts, The Planetary Society’s chief scientist, joins host Sarah Al-Ahmed to look ahead, exploring the great mysteries we could solve in the coming years if we continue to invest in space science. Discover more at: https://www.planetary.org/planetary-radio/2025-day-of-action-for-nasa-scienceSee omnystudio.com/listener for privacy information.