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 as...
Revisiting K2-18 b: JWST finds a lead in the search for life on a mysterious exoplanet
This week we revisit one of the most remarkable exoplanet discoveries of 2024 with the help of the James Webb Space Telescope (JWST). JWST detected signs of methane and carbon dioxide in the atmosphere of K2-18 b. Knicole Colón, the deputy project scientist for exoplanet science for JWST, explains how this discovery could reshape our search for life beyond Earth and teach us more about the enigmatic class of exoplanets known as sub-Neptunes. Stick around for What's Up with Bruce Betts, the chief scientist of The Planetary Society. Discover more at: https://www.planetary.org/planetary-radio/2025-jwst-new-lead-in-search-for-life See omnystudio.com/listener for privacy information.
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Emily Calandrelli becomes the hundredth woman in space
This week, we celebrate a remarkable milestone as Emily Calandrelli, also known as “the Space Gal,” becomes the 100th woman to venture into space. Emily shares her experiences on the Blue Origin voyage, what she took to space, and how motherhood influenced her reaction to seeing Earth from space. Then Planetary Society Chief Scientist Bruce Betts joins for What's Up and a list of fun things to do in zero-g. Discover more at: https://www.planetary.org/planetary-radio/2025-100th-woman-in-space See omnystudio.com/listener for privacy information.
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Space Policy Edition: The Challenges of Change at NASA
How does change happen within NASA, and what prevents it? Marcia Smith, founder of Space Policy Online, joins the show to discuss the opportunities and pitfalls faced by incoming presidential administrations and how NASA has—and hasn’t—changed over the decades. Will Artemis be reimagined? Will public-private partnerships introduce more risk than reward? And is change even the right default attitude to take? Discover more at: https://www.planetary.org/planetary-radio/change-and-continuity-at-nasa-with-marcia-smith See omnystudio.com/listener for privacy information.
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The Planetary Society’s 45th anniversary with Bill Nye
Planetary Radio kicks off The Planetary Society's 45th anniversary year with CEO, Bill Nye. Bill reflects on the organization's first forty-five years and what humanity has learned about space in that time. Then, Chief Scientist Bruce Betts joins in for the first What's Up and Random Space Fact of 2025. Discover more at: https://www.planetary.org/planetary-radio/2025-45th-anniversary See omnystudio.com/listener for privacy information.
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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. Kate Howells (Public Education Specialist) shares the winners of The Planetary Society's Best of 2024 awards. Then, Mat Kaplan (Senior Communications Advisor), Ambre Trujillo (Digital Community Manager), and Asa Stahl (Science Editor) team up for a rundown of the year's highlights. We close out 2024 with Bruce Betts, our chief scientist, as he shares his last random space fact of the year. Discover more at: https://www.planetary.org/planetary-radio/2024-looking-back See omnystudio.com/listener for privacy information.
About 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 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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