

Planetary Radio: Space Exploration, Astronomy and Science
The Planetary Society
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.
Episodes
Mentioned books

Jan 10, 2024 • 51min
JWST finds a new lead in the search for life on a mysterious exoplanet
Guest Knicole Colón, deputy project scientist for exoplanet science for JWST, discusses the discovery of methane and carbon dioxide on exoplanet K2-18 b, potentially transforming our search for extraterrestrial life. They explore the limitations of the Hubble Space Telescope, the promising capabilities of the James Webb Space Telescope, variations in composition and characteristics of the exoplanet, and the potential for life on sub-neptunes.

Jan 5, 2024 • 1h 4min
Space Policy Edition: India’s growing space ambitions
India's space program has evolved from practical programs to symbolic feats of spaceflight. Prime Minister Narendra Modi announced ambitious plans for Indian space stations and lunar missions. The podcast explores India's history, motivations, and ambitions in space. It discusses India's focus on meeting social needs and its growth in parallel with the economy. The episode also delves into India's Mars Orbiter Mission, its collaboration with Israel, and its increasing commitment to commercial and human spaceflight.

Jan 3, 2024 • 60min
Revisiting the discovery of phosphorus on Enceladus
Chris Glein, lead scientist at Southwest Research Institute, joins to discuss the discovery of phosphorus on Enceladus, its implications for the search for life, abundance of phosphorus on Enceladus, Cassini spacecraft's exploration of potential habitability and possibility of life on Enceladus, proposed mission Enceladus Lifefinder, importance of studying natural geological experiments on Insolidus, significance of studying Enceladus and interconnectedness of Earth, Enceladus, and exoplanets, and discussion on learning from Martian samples and sulfur dioxide clouds on Venus.

Dec 27, 2023 • 60min
Looking back on 2023
Members of The Planetary Society staff revisit some of 2023's most exhilarating moments and groundbreaking discoveries in space this week on Planetary Radio. Kate Howells, Public Education Specialist, announces the winners of The Planetary Society's Best of 2023 awards. Jack Kiraly, Director of Government Relations, shares the strides made in space advocacy. Then Rae Paoletta, Director of Content and Engagement, and Mat Kaplan, Senior Communications advisor and former host of Planetary Radio, return to break down their favorite space moments of the year. Stick around until the end for What's Up with Bruce Betts, the Chief Scientist of The Planetary Society, as he looks forward to the next year of space science and exploration. Discover more at: https://www.planetary.org/planetary-radio/2023-looking-back See omnystudio.com/listener for privacy information.

Dec 20, 2023 • 1h 13min
Dragonfly soars to final design phase
The head of the Johns Hopkins Applied Physics Lab's Space Exploration Sector, Bobby Braun, and other key individuals give an update on NASA's Dragonfly mission to Saturn's moon Titan. They discuss the mission's progress, design challenges, operational details, and the excitement of exploring a distant world without maps or GPS. The podcast also includes a lighthearted conversation about popular names and random space facts.

Dec 13, 2023 • 60min
An astrogeologic experience with Kirby Runyon
Sometimes, when you want to learn more about other worlds, all you have to do is step out your door. Mat Kaplan, Planetary Radio's creator and former host, takes us on an adventure with planetary geologist Kirby Runyon as they tour New Mexico, U.S.'s varied geology and compare it to other worlds. They'll explore the dunes of White Sands National Park, the Mars-like geology of Kilbourne Hole, and the rocks in the Carrizozo Lava flow. Then Bruce Betts, the chief scientist of The Planetary Society, and host Sarah Al-Ahmed discuss the most otherworldly places they've been in this week's What's Up. Discover more at: https://www.planetary.org/planetary-radio/2023-astrogeologic-expedition See omnystudio.com/listener for privacy information.

Dec 6, 2023 • 50min
The mystery of the largest marsquake ever recorded
Benjamin Fernando from the University of Oxford discusses the largest marsquake ever recorded by NASA’s InSight Mars lander. The podcast explores the international effort to determine the quake's cause. Bruce Betts, the chief scientist of The Planetary Society, and host Sarah Al-Ahmed also share their earthquake experiences.

Dec 1, 2023 • 59min
Space Policy Edition: Was the Space Shuttle a policy failure?
Discussion on whether the Space Shuttle was a policy failure, analyzing its goals versus reality, design choices, and lack of support. Examining the motivations, troubles, uncertainty, and criticism of the program. Exploring challenges faced, trade-offs made, and impact on NASA. Exploring financial aspects and questioning if they can be considered policy failures.

Nov 29, 2023 • 53min
Lucy's first asteroid flyby reveals a surprise moon
Hal Levison and Simone Marchi, principal and deputy principal investigators of NASA's Lucy mission, discuss the surprising discovery of a moon during the spacecraft's first asteroid flyby. They delve into the challenges faced during solar array deployment, unexpected findings, and the importance of accurate data collection. The podcast also covers insights into the structure of asteroid Dinkinesh, the presence of craters on celestial objects, and studying the oldest objects for planet formation insights. Plus, they touch on the smell of space stations and measuring degrees of latitude.

Nov 22, 2023 • 56min
Deep Sky: A JWST IMAX experience
Deep Sky, a newly released IMAX documentary, tells the emotional and hopeful story of the James Webb Space Telescope (JWST). Nathaniel Kahn, an Oscar-nominated filmmaker and the director of Deep Sky, joins Planetary Radio this week to discuss the film's decade-long creation process and the magic of JWST images on the big screen. Then Bruce Betts, the chief scientist of The Planetary Society, joins for What's Up and a new random space fact. Discover more at: https://www.planetary.org/planetary-radio/2023-deep-skySee omnystudio.com/listener for privacy information.