The Discovery That Broke the Rules of the Solar System

This is Eris, the Pluto killer. If you love learning about science as much as I do, head to http://brilliant.org/astrum to learn for free for a full 30 days. You'll also receive 20% off a premium annual subscription, giving you unlimited access to everything on Brilliant. ▀▀▀▀▀▀ In this video, we’re heading to the chaotic, murky edges of the solar system to meet the “tenth planet”, Eris. Also known as the “Pluto killer”, the discovery of this massive icy world didn't just add a name to the map, it triggered a scientific war that redefined what it means to be a planet, forever. ▀▀▀▀▀▀ 0:00 The Tenth Planet 4:18 Redefining “Planet” 8:50 Eris’ Orbit 12:15 Eris’ Size 13:35 Eris’ Surface 15:02 Eris' Moon: Dysnomia 17:42 The Pluto Killer ▀▀▀▀▀▀ To stay on top of space news, sign up to the Astrum newsletter: https://astrumspace.kit.com Astrum Displate Posters: https://displate.com/astrumspace?art=5f04759ac338b Astrum Merch: https://astrum-shop.fourthwall.com/ Join us on the Astrum discord: https://discord.gg/TKw8Hpvtv8 A huge thanks to our Patreons who help make these videos possible. Sign-up here to support the channel: https://bit.ly/4aiJZNF ▀▀▀▀▀▀ Astrum Podcast on Spotify: https://open.spotify.com/show/6jPRrbq3o3dpvBb173ZTKi?si=a90d3efe3b704c83 Astrum Earth: https://youtube.com/@AstrumEarth Astrum Extra: https://www.youtube.com/@astrumextra Astrum Spanish: https://www.youtube.com/@astrumespanol Astrum Portuguese: https://www.youtube.com/channel/UChn_-OwvV63mr1yeUGvH-BQ ▀▀▀▀▀▀ References: “Eris: dwarf planet overview”, via nasa.gov https://astrumspace.info/eris “The Discovery of Eris”, via arxiv.org https://astrumspace.info/erisdiscovery “Controversy surrounding dwarf planet naming”, via newscientist.com https://astrumspace.info/haumeadisc “IAU vote controversy over planet definition”, via bbc.co.uk https://astrumspace.info/iauvote “What makes a planet?”, via ucla.edu https://astrumspace.info/planetdefinition “Orbit and dynamical properties of Eris”, via nasa.gov https://astrumspace.info/erisorbit “Eris’s unusually high Bond albedo”, via iopscience.iop.org https://astrumspace.info/erisalbedo “Possible geothermal activity on Eris”, via arxiv.org https://astrumspace.info/erisgeothermal “Discovery of Eris’s moon Dysnomia”, via caltech.edu https://astrumspace.info/dysnomia “The Eris–Dysnomia binary system”, via arxiv.org https://astrumspace.info/erissystem ▀▀▀▀▀▀ Credits: Writer: Jess Jordan Video Editor: Nick Shishkin Researcher: Shourya Shrivastava Script Editor: Damaris McColgan Thumbnail Designer: Peter Sheppard Publishing Lead: Georgina Brenner Production Manager: Raquel Taylor Edit Producer: Poppy Pinnock Head of Astrum: Jess Jordan Creator of Astrum: Alex McColgan With special thanks to: NASA/ESO/ESA #Astrum #Space #Eris #DwarfPlanet