Since 2002, Planetary Radio has visited with a scientist, engineer, project manager, advocate, or writer who provides a unique perspective on the quest for knowledge about our Solar System and beyond. The full show archive is available for free.

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The Other Moonshot: The untold stories of Apollo’s Black engineers in Los Angeles

Joanne Higgins joins Planetary Radio to share the untold stories of Black engineers who helped make the Apollo program possible. We explore their legacy, the challenges they faced, and how their stories can inspire a more inclusive future in space.

The Mars Innovation Workshop

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.

An extinction-level event for NASA science

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.

Space Policy Edition: Locke, liberty, and the pursuit of happiness (in space)

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

Breaking down Bennu: OSIRIS-REx finds life’s building blocks in asteroid sample

Scott Sandford, co-investigator on OSIRIS-REx and a research scientist at NASA’s Ames Research Center, discusses the first published analyses of the Bennu sample, revealing insights into the early Solar System and the origins of life.

Genesis: The sample return mission that fell to Earth and still succeeded

Amy Jurewicz, former project scientist for NASA’s Genesis mission, shares how the spacecraft survived a crash-landing and still reshaped our understanding of the solar wind and space weather.

Astronaut Hayley shares her brave adventure

Hayley Arceneaux discusses her memoir Wild Ride and her newly released kids' book Astronaut Hayley's Brave Adventure, sharing the story of how her experiences with childhood cancer led to her space adventure aboard SpaceX's Inspiration4 mission.

Near-Earth Asteroid 2024 YR4 and NASA under a new administration

Asteroid 2024 YR4 has captured global attention, but is it really a threat? Kate Howells breaks it down. Then, Casey Dreier and Jack Kiraly analyze how the new Trump administration is shaping NASA’s future.

Space Policy Edition: Mars Sample Return, but at what (fixed) price?

Rocket Lab CEO Peter Beck outlines a $4B fixed-price plan for Mars Sample Return — and reveals new Venus mission details — before VP Richard French explains how a single, integrated team cuts costs and ensures success.

Kiss-and-capture: The dance of Pluto and Charon

How did Pluto meet its largest moon, Charon? Adeene Denton, a research scientist at the University of Arizona, suggests a "kiss-and-capture" may solve this mystery.

The Edward Stone Voyager Exploration Trail

We celebrate Ed Stone’s lasting legacy with the unveiling of the Dr. Edward Stone Exploration Trail at JPL.

Does It Fly? Putting science in entertainment to the test

We discuss how to examine the science behind our favorite TV shows and movies with the co-hosts of the Does It Fly? podcast, Hakeem Oluseyi and Tamara Krinsky.

Revisiting K2-18 b: JWST finds a new lead in the search for life on a mysterious exoplanet

Knicole Colón, the deputy project scientist for exoplanet science for JWST, joins Planetary Radio to discuss the detection of methane and carbon dioxide in the atmosphere of K2-18 b.

Emily Calandrelli becomes the hundredth woman in space

Emily Calandrelli, also known as “the Space Gal,” shares her experience becoming the hundredth woman in space after blasting off on a Blue Origin suborbital rocket.

Space Policy Edition: The Challenges of Change at NASA

Marcia Smith, founder of Space Policy Online, joins the show to discuss the motivations and risks of pursuing change at NASA - and how much change can ultimately happen with Congress holding the purse strings.

The Planetary Society’s 45th anniversary with Bill Nye

Planetary Radio kicks off The Planetary Society's 45th anniversary year with CEO, Bill Nye.

Looking back on 2024

The Planetary Society team reviews the best space moments of 2024, from the China National Space Administration's return of samples from the far side of the Moon to the triumphant launch of NASA's Europa Clipper mission.

Mars “spiders” recreated in the lab

Lauren Mc Keown, a postdoctoral fellow at NASA's Jet Propulsion Laboratory, discusses her experiences recreating Martian araneiform terrain, also called Mars spiders, in the lab.

Space Policy Edition: The Myth of Presidential Leadership

We revisit a classic book on the limits of presidential power in setting the nation’s space agenda and explore how the increasingly powerful executive branch might be rewriting those expectations.

StarTalk with Bill Nye and Neil deGrasse Tyson

We take you to Planetary Society headquarters, where Neil deGrasse Tyson, host of StarTalk, interviews Planetary Society CEO Bill Nye.

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