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

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

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Episoder(1313)

Space Policy Edition: The power of the lunar sublime

Space Policy Edition: The power of the lunar sublime

Should policymakers spend more time looking — really looking — at the Moon? Chris Cokinos thinks so. He is the author of the new book, Still As Bright: An Illuminating History of the Moon, from Antiqu...

3 Mai 20241h 15min

Europa Clipper’s message in a bottle

Europa Clipper’s message in a bottle

NASA's Europa Clipper mission is almost ready for its historic trip to the Jovian system. Merc Boyan, a visual storyteller at The Planetary Society, takes us into the clean room at NASA's Jet Propulsi...

1 Mai 202459min

Eclipse-O-Rama

Eclipse-O-Rama

On April 8, 2024, a total solar eclipse passed over Mexico, the United States, and Canada. This week on Planetary Radio, we take a trip to The Planetary Society’s Eclipse-O-Rama festival in Fredericks...

24 Apr 20241h 36min

Tabletops and telescopes: NASA’s RPG and the hunt for habitable worlds

Tabletops and telescopes: NASA’s RPG and the hunt for habitable worlds

This week on Planetary Radio, we explore "The Lost Universe," NASA's first tabletop role-playing game, with Christina Mitchell, a senior multimedia specialist at NASA's Goddard Space Flight Center in ...

17 Apr 20241h 2min

Radiolab helps name a quasi-moon of Venus

Radiolab helps name a quasi-moon of Venus

Sometimes, misunderstandings can spark beautiful adventures. This week on Planetary Radio, we explore the story behind the naming of Zoozve, a quasi-moon of Venus, with Latif Nasser, co-host of Radiol...

10 Apr 202448min

Space Policy Edition: Real and Acceptable Reasons for Space Exploration

Space Policy Edition: Real and Acceptable Reasons for Space Exploration

Former NASA Administrator Mike Griffin joins the Space Policy Edition to discuss his notable 2007 speech outlining the tension between so-called “real” and “acceptable” reasons for space exploration. ...

5 Apr 202453min

Syzygy science: Discoveries made during total solar eclipses

Syzygy science: Discoveries made during total solar eclipses

Planetary Radio marks its last show before the Apr. 8 total solar eclipse with a look back at discoveries made during totality. Planetary Society science editor Asa Stahl shares why solar maximum is e...

3 Apr 202457min

Eclipse Tips: A guide to safe observing and astrophotography

Eclipse Tips: A guide to safe observing and astrophotography

On April 8, 2024, a total solar eclipse will sweep across North America. Ron Benner, the President of the American Optometric Association, joins Planetary Radio to share safety tips to protect your ey...

27 Mar 202459min

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