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

 

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 Col&oacute;n, 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:&nbsp;<a href="https://www.planetary.org/planetary-radio/2024-JWST-new-lead-in-search-for-life">https://www.planetary.org/planetary-radio/2025-jwst-new-lead-in-search-for-life</a>
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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.

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.

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 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, chief scientist for The Planetary Society, as they dive deep into the latest space news. The monthly Space Policy Edition takes you inside the DC beltway with Casey Dreier and Jack Kiraly to discuss the politics of space exploration in the US and advocacy actions you can take to support the missions that matter. Visit planetary.org/radio for the space trivia contest, an episode guide, and much more.

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 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, chief scientist for The Planetary Society, as they dive deep into the latest space news. The monthly Space Policy Edition takes you inside the DC beltway with Casey Dreier and Jack Kiraly to discuss the politics of space exploration in the US and advocacy actions you can take to support the missions that matter. Visit planetary.org/radio for the space trivia contest, an episode guide, and much more.

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.

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

Rocket Lab CEO Peter Beck joins the show to unpack his company’s bold, $4-billion fixed-price plan to bring Martian samples home, why he believes commercial partnerships can unlock new frontiers in planetary science, and his “soft spot” for interplanetary exploration. Then, Richard French — former JPL engineer and now VP of Business & Strategy at Rocket Lab — provides deeper insight into their proposed Mars Sample Return architecture, explaining how a single, vertically integrated team could cut costs and secure mission success. And yes, we get an update on the status of their Venus mission, too.

Discover more at: https://www.planetary.org/planetary-radio/can-rocketlab-save-msr

Rocket Lab CEO Peter Beck joins the show to unpack his company&rsquo;s bold, $4-billion fixed-price plan to bring Martian samples home, why he believes commercial partnerships can unlock new frontiers in planetary science, and his &ldquo;soft spot&rdquo; for interplanetary exploration. Then, Richard French &mdash; former JPL engineer and now VP of Business &amp; Strategy at Rocket Lab &mdash; provides deeper insight into their proposed Mars Sample Return architecture, explaining how a single, vertically integrated team could cut costs and secure mission success. And yes, we get an update on the status of their Venus mission, too.
Discover more at:&nbsp;<a href="https://www.planetary.org/planetary-radio/can-rocketlab-save-msr">https://www.planetary.org/planetary-radio/can-rocketlab-save-msr</a>

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.

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

How did Pluto meet its largest moon, Charon? Many have speculated that Charon formed in an impact, but traditional models of planetary formation have struggled to explain many of the quirks of this system. This week, Adeene Denton, a research scientist at the University of Arizona, shares her team's new paper that suggests a "kiss-and-capture" may solve this mystery. Then Bruce Betts, The Planetary Society's chief scientist, discusses contact binaries in our Solar System and shares a new Random Space Fact in What's Up.

Discover more at: https://www.planetary.org/planetary-radio/2025-pluto-kiss-and-capture

How did Pluto meet its largest moon, Charon? Many have speculated that Charon formed in an impact, but traditional models of planetary formation have struggled to explain many of the quirks of this system. This week, Adeene Denton, a research scientist at the University of Arizona, shares her team's new paper that suggests a "kiss-and-capture" may solve this mystery. Then Bruce Betts, The Planetary Society's chief scientist, discusses contact binaries in our Solar System and shares a new Random Space Fact in What's Up.
Discover more at:&nbsp;<a href="https://www.planetary.org/planetary-radio/2024-pluto-kiss-and-capture">https://www.planetary.org/planetary-radio/2025-pluto-kiss-and-capture</a>

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.

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

This week on Planetary Radio, we celebrate the enduring legacy of Ed Stone, the longtime project scientist for NASA’s Voyager mission and former director of JPL. Mat Kaplan, senior communications advisor at The Planetary Society, takes us to the unveiling of the Dr. Edward Stone Voyager Exploration Trail at JPL, where we hear from past and present JPL leaders, Voyager mission team members, and Ed Stone’s family. Plus, we kick off the episode with the much-anticipated launch of Blue Origin’s New Glenn rocket and wrap up with What’s Up, as Bruce Betts explores the rare planetary configuration that made Voyager’s Grand Tour possible.

Discover more at: https://www.planetary.org/planetary-radio/2025-ed-stone-trail

This week on Planetary Radio, we celebrate the enduring legacy of Ed Stone, the longtime project scientist for NASA&rsquo;s Voyager mission and former director of JPL. Mat Kaplan, senior communications advisor at The Planetary Society, takes us to the unveiling of the Dr. Edward Stone Voyager Exploration Trail at JPL, where we hear from past and present JPL leaders, Voyager mission team members, and Ed Stone&rsquo;s family. Plus, we kick off the episode with the much-anticipated launch of Blue Origin&rsquo;s New Glenn rocket and wrap up with What&rsquo;s Up, as Bruce Betts explores the rare planetary configuration that made Voyager&rsquo;s Grand Tour possible.
Discover more at:&nbsp;<a href="https://www.planetary.org/planetary-radio/2025-ed-stone-trail">https://www.planetary.org/planetary-radio/2025-ed-stone-trail</a>

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

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

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