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Planetary Radio: Space Exploration, Astronomy and Science

The Planetary Society

1293 episodes

4 days ago

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.

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All content for Planetary Radio: Space Exploration, Astronomy and Science is the property of The Planetary Society and is served directly from their servers with no modification, redirects, or rehosting. The podcast is not affiliated with or endorsed by Podjoint in any way.

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.

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Episodes (20/1293)

Planetary Radio: Space Exploration, Astronomy and Science

Ripples on the Cosmic Ocean

Historian Dagomar Degroot joins Planetary Radio to discuss his new book, “Ripples on the Cosmic Ocean: An Environmental History of Our Place in the Solar System,” which reveals how events across the Solar System have shaped life on Earth.

5 days ago

1 hour 9 minutes

Planetary Radio: Space Exploration, Astronomy and Science

2025 NASA’s Innovative Advanced Concepts Symposium: Part 2 — Hopping robots and the search for exoplanet magnetospheres

Planetary Radio continues its coverage from the 2025 NASA Innovative Advanced Concepts Symposium in Philadelphia, highlighting technologies that could shape future missions, from detecting exoplanet magnetospheres to exploring Venus and Saturn’s moon Enceladus with innovative robots.

1 week ago

1 hour 1 minute

Planetary Radio: Space Exploration, Astronomy and Science

Book Club Edition: Space Craze by Margaret Weitekamp

Space Craze author Margaret Weitekamp of the National Air and Space Museum documents our fascination with all things space, as evidenced by the pop culture artifacts she lovingly oversees in the collection.

2 weeks ago

55 minutes

Planetary Radio: Space Exploration, Astronomy and Science

2025 NASA’s Innovative Advanced Concepts Symposium: Part 1 — Lunar glass and starshades

Planetary Radio explores visionary ideas from NASA’s Innovative Advanced Concepts Symposium. In this first of two episodes, discover how researchers are turning science fiction into reality, from glass habitats on the Moon to starshades that could reveal new Earths.

2 weeks ago

53 minutes

Planetary Radio: Space Exploration, Astronomy and Science

A Day of Action to save NASA science

Hundreds of advocates joined The Planetary Society and partner organizations in Washington, D.C., to urge Congress to protect NASA’s science budget. Hear from Ari Koeppel, Britney Schmidt, Bill Nye, Rep. Glenn Ivey, Marcel Agüeros, Brandon Jones, and Casey Dreier about this historic Day of Action.

3 weeks ago

1 hour

Planetary Radio: Space Exploration, Astronomy and Science

Space Policy Edition: China’s growing space science ambitions

If the United States is indeed in a space race with China, why are we abandoning space science programs across the Solar System? This question, posed by guest Maxwell Zhu in a recent op-ed co-authored by The Planetary Society’s chief of space policy, reveals the current myopia around human spaceflight and the missing focus on a growing and ambitious new entrant into space science in the 21st century.

1 month ago

48 minutes

Planetary Radio: Space Exploration, Astronomy and Science

Perseverance finds potential biosignatures in Jezero Crater

NASA’s Perseverance rover has found potential biosignatures in Jezero Crater’s Bright Angel formation. Host Sarah Al-Ahmed speaks with Joel Hurowitz, associate professor of geosciences at Stony Brook University and lead author of the new Nature paper, about this remarkable discovery.

1 month ago

1 hour

Planetary Radio: Space Exploration, Astronomy and Science

Bill Nye: A star in Hollywood, a voice for NASA

Bill Nye, CEO of The Planetary Society, celebrates his new star on the Hollywood Walk of Fame and joins us to reflect on its meaning. We also receive the latest space policy updates as NASA faces significant budget challenges.

1 month ago

56 minutes

Planetary Radio: Space Exploration, Astronomy and Science

Book Club Edition: Cosmos Award–winning author Dava Sobel

Author and historian of science Dava Sobel talks about her many wonderful books with The Planetary Society’s Mat Kaplan. Dava recently received the Society’s Cosmos Award.

1 month ago

50 minutes

Planetary Radio: Space Exploration, Astronomy and Science

A cosmic travel guide: 111 Places in Space That You Must Not Miss

Join host Sarah Al-Ahmed and Mark McCaughrean, adjunct scientist at the Max Planck Institute for Astronomy, for a tour of “111 Places in Space That You Must Not Miss”, a cosmic travel guide to the Universe.

1 month ago

1 hour 7 minutes

Planetary Radio: Space Exploration, Astronomy and Science

International Observe the Moon Night 2025

Host Sarah Al-Ahmed speaks with Staci Horvath, outreach coordinator at NASA Goddard Space Flight Center and director of International Observe the Moon Night, and Theresa Summer, astronomy educator at the Astronomical Society of the Pacific, about the history and global impact of International Observe the Moon Night.

1 month ago

59 minutes

Planetary Radio: Space Exploration, Astronomy and Science

Space Policy Edition: Does the rise of Elon mean the decline of NASA?

Atlantic writer Franklin Foer joins the show to discuss how NASA enabled the rise of Elon Musk, and, in doing so, sowed the seeds of its own decline.

1 month ago

1 hour

Planetary Radio: Space Exploration, Astronomy and Science

Uranus revealed: Solving the ice giant’s heat mystery

Michael Roman, assistant professor at the Universidad Adolfo Ibáñez in Chile, joins Sarah Al-Ahmed to discuss new research confirming that Uranus radiates excess heat, finally resolving a decades-long mystery first sparked by Voyager 2.

2 months ago

56 minutes

Planetary Radio: Space Exploration, Astronomy and Science

Esports and space: BASILISK’s quest for “Science Victory”

What happens when pro gaming and space science collide? Kyle Hill, head of science education and outreach for the esports team BASILISK, joins us to share how the team is inspiring the next generation of scientists.

2 months ago

57 minutes

Planetary Radio: Space Exploration, Astronomy and Science

Silicate clouds and a dusty ring: JWST looks at YSES-1

JWST has uncovered silicate clouds and a dusty circumplanetary disk in the YSES-1 system. Kielan Hoch and Emily Rickman from the Space Telescope Science Institute join us to explore what these surprising findings reveal about young giant exoplanets.

2 months ago

59 minutes

Planetary Radio: Space Exploration, Astronomy and Science

Book Club Edition: Exploring the Overview Effect with Frank White

Frank White is the author of “The Overview Effect: Space Exploration and Human Evolution. “ Now in its fourth edition, the book has crystallized and expanded on the profound sense of wonder and oneness experienced by nearly all astronauts.

2 months ago

1 hour 3 minutes

Planetary Radio: Space Exploration, Astronomy and Science

A “Star Trek” future: Your place in space

Star Trek actors Robert Picardo and Tim Russ join Planetary Society staff members Ambre Trujillo and Andrew Pauly at STLV, a “Star Trek” convention, to explore how “Star Trek” inspires real-world space advocacy.

2 months ago

59 minutes

Planetary Radio: Space Exploration, Astronomy and Science

3I/ATLAS: The third interstellar object ever found

Astronomers have discovered a new interstellar comet, 3I/ATLAS, the third object ever seen entering our Solar System from another star. We speak with Bryce Bolin, research scientist at Eureka Scientific, about what makes this visitor unique and what it can teach us about other worlds.

2 months ago

54 minutes

Planetary Radio: Space Exploration, Astronomy and Science

Space Policy Edition: Is this the moment for in-space nuclear power?

Dr. Bhavya Lal argues that the 2020s are a decisive decade for in-space nuclear power. Without nuclear, humans may never be more than visitors on Mars or the Moon.

3 months ago

1 hour 10 minutes

Planetary Radio: Space Exploration, Astronomy and Science

The science of sleep in space

Erin Flynn-Evans, director of the Fatigue Countermeasures Laboratory at NASA Ames Research Center, shares how sleep science is helping astronauts stay healthy in space and prepare for future missions to Mars.

3 months ago

55 minutes