Why isn't Pluto a planet?

Izzie and Dr Becky decided that little ol’ Pluto doesn’t get much attention anymore. So we’re giving the dwarf planet some time in the spotlight. Why isn't Pluto a planet? How small is it? And what makes it so unique? Thank you to Prof Alan Fitzsimmons from Queens University of Belfast joining us episode. Join The Supermassive Club for ad-free listening and share you questions, images and more. Or email them to podcast@ras.ac.uk or on Instagram @SupermassivePod. The Supermassive Podcast is a Boffin Media production. The producers are Izzie Clarke and Richard Hollingham. Hosted on Acast. See acast.com/privacy for more information.

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Why isn't Pluto a planet? is an episode from The Supermassive Podcast by Izzie Clarke.

This episode is 50:42 long.

This episode was published on Jun 30, 2025.

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