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Nov 19, 2025 1 hr

s3e2: Habitats in the Void

from syzygy Hosted by Chris Stewart

Having established that the hunt for life in the galaxy ought to begin with an appropriate star, Emily turns our attention towards suitable planets. But what makes a hospitable home for life? It’s complicated, and it seems whatever way we look at it, we don’t have a lot of candidates to choose from. Emily discusses earth-like rocky planets, ocean worlds, and wonderfully-named Chthonian planets, before letting rip with some wild speculation. I mean, life could be anywhere, right? On the web: syzygy.fm Help us make Syzygy even better! Tell your friends and give us a review, or show your support on Patreon: patreon.com/syzygypod Syzygy is produced by Chris Stewart and co-hosted by Dr Emily Brunsden from the Department of Physics at the University of York. Some of the things we talk about in this episode: • The first exoplanet, 51 Pegasi b • The Habitable Zone • Chthonian planets, Mini Neptunes & Super Earths • The Habitable Worlds Catalog(ue) • The Trappist-1 System • Proxima Centauri b • LHS 1140 b • Hycean Worlds • Dimethyl Sulphide discovery? • Icy Ocean Planets

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Having established that the hunt for life in the galaxy ought to begin with an appropriate star, Emily turns our attention towards suitable planets. But what makes a hospitable home for life? It’s complicated, and it seems whatever way we look at it, we don’t have a lot of candidates to choose from. Emily discusses earth-like rocky planets, ocean worlds, and wonderfully-named Chthonian planets, before letting rip with some wild speculation. I mean, life could be anywhere, right?

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s3e2: Habitats in the Void

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