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Why isn't Pluto a planet?

51 min • 30 juni 2025

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.

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The Supermassive Podcast is a Boffin Media production. The producers are Izzie Clarke and Richard Hollingham.

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Why isn't Pluto a planet?

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46: Q&A - Spice Girls, Black Holes, and Ice-Cream in Space

45: BONUS - Have you heard of "Ploonets"?

45: Uranus the Oddball

44: BONUS - Team Enceladus or Team Europa?

44: Here Comes the Sun...with NASA's Head of Science

43: BONUS - Aimless telescopes & beyond the Milky Way

43: Most of the Universe is missing...

42: BONUS – White holes, astrology and why is Venus so hot?

42: A (brief) History of Astronomy

41: BONUS - Why do Gas Giants exist?

41: BIG Observatories

40: BONUS - Are Lunar Poles Arbitrary?

40: Becky Loves Saturn

39: BONUS - Do black holes stop time?

39: Jupiter The Monster

38: BONUS - More Comets, Less Asteroids

38: Gettin' Gravitational Wave-y

37: BONUS - The Supermassive Mailbox

37: Q&A - Black Hole Burps and Space Station Pacman

36: Stargazing with Team Supermassive

Double Astronaut Special: Returning to the Moon

34: How to Deflect an Asteroid

33: Q&A - The Year in Space

32: JWST First Images... FINALLY!

31: Life on Mars - LIVE from Standon Calling

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28: How to Kill a Galaxy

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23: The End of the Universe

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