The Discovery That Got Pluto Demoted - Astrum Space

What this episode covers

This is Eris, the Pluto killer.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.▀▀▀▀▀▀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.▀▀▀▀▀▀Astrum's newsletter has launched! Want to know what's happening in space? Sign up here: ⁠https://astrumspace.kit.com⁠A huge thanks to our Patreons who help make these videos possible. Sign-up here: ⁠https://bit.ly/4aiJZNF

Share this episode

Similar Episodes

Visionary Archetypes for Worldbuilding

Apr 15, 2026 ·28m

Worldbuilding in a Dumpster Fire

Mar 12, 2026 ·14m

New Moon Eclipse in Aquarius

Feb 17, 2026 ·21m

Becoming a Dream of the Earth

Feb 14, 2026 ·11m

Why Live and Evergreen Models Both Fall Short

Feb 4, 2026 ·18m

Grief as a Doorway with Melissa Word

Jan 5, 2026 ·61m

Similar Podcasts

DIOSA. Carolina Sanper This podcast is a sacred space created by Carolina Sanper where you connect with your inner wisdom and embody your magnetic feminine power.It is the realization that the mystical realm is where you plant the seeds of your desired reality.It is a portal to your true essence: awareness, presence, and receiving with ease. Welcome home, DIOSA. 🖤 The Course Mentors Podcast The Course Mentors Hey there, future course creator!Ever feel like turning your know-how into an online course is like trying to solve a Rubik's cube blindfolded? Well, grab your headphones because "The Course Mentors Podcast" is here to be your secret weapon!Meet Aimee and Odette (that's us!), your new best friends in the course creation world. We've been in the trenches for over a decade, and for the last five years, we've been rocking the online course space. Now we're here to spill all our secrets in bite-sized, 15-20 minute episodes that'll fit perfectly in your coffee breaks.No fluff, no filler - just real, actionable advice that'll take you from "um, what's a landing page?" to "holy moly, I just hit six figures!". We're talking everything from crafting your course to marketing it like a pro and building a business that'll have you pinching yourself.Whether you're dreaming of ditching the 9-to-5 grind, adding a sweet extra income str NEWMORROW SESSIONS - A PodCast Series on the Future of Hospitality Mario C. Bauer, Florian Schneider, Axel Weber & Dr. Tillman Bardt The Newmorrow PodCast is more than a podcast — it's a platform for open dialog on the future of our business, a platform for those building what doesn’t exist yet. Here, we share and embrace our passion for the hospitality industry, but we won’t romanticize the journey. We ask the tough questions, confront uncomfortable truths, and prepare for a future that resists easy answers. We believe that the tougher and wilder times become, the more openly, honestly and humanely people need to talk to each other and act together. We believe, openness, togetherness, and truthfulness should also be cornerstones of a professional community to develop our utopian idea of „open source“. This is a space where visionaries don’t just imagine the future — they wrestle with the paradoxes that shape it: success vs. happiness, data vs. instinct, stability vs. reinvention. Join leaders, entrepreneurs, and thinkers as they share not what made them — but what’s actively shaping them, now and next. So tune in LE HAWKESBURY SOCIAL ’BACK TO LIFE’ ADAM STACEY Welcome to the ‘Le Hawkesbury Social’, 'Back to Life’ a space where we celebrate life in all its colors: happiness, joy, love, connection, and even the moments of sadness that make us human. A space where we celebrate life in all its colors: happiness, joy, love, connection, and even the moments of sadness that make us human. Hosted by a passionate mental health advocate, this show dives deep into the topics that truly matter to today’s culture and community. Each episode offers honest conversations, thoughtful reflections, and real stories that bring people together. Whether you’re here for mental health discussions, community connections, or just looking to feel seen and heard in a fast-paced world, you’re in the right place. Adam believes in building a diverse and inclusive community where voices from every background can come together, share, and support one another. That’s why every Wellness Podcast, we open the mic to local community partners, support services, and inspiring voi

Frequently Asked Questions

How long is this episode of Astrum Space?

This episode is 20 minutes long.

When was this Astrum Space episode published?

This episode was published on December 23, 2025.

What is this episode about?

This is Eris, the Pluto killer.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...

Can I download this Astrum Space episode?

Yes, you can download this episode by clicking the download button on the episode player, or subscribe to the podcast in your preferred podcast app for automatic downloads.