On this episode of SETI Live, host Moiya McTier welcomes two leading researchers—Gabriele Cugno (University of Zürich) & Sierra L. Grant (Carnegie Institution for Science)—to dive into an extraordinary discovery by the James Webb Space Telescope (JWST): a carbon-rich, moon-forming disk around the distant exoplanetary object CT Cha b, some 625 light-years away. What exactly is a “moon-forming disk”? Why is this discovery a game-changer for our understanding of how moons — and ultimately habitable

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