Dark matter: How does it clarify a star's speed?

What this episode covers

View full lesson: http://ed.ted.com/lessons/dark-matter-how-does-it-explain-a-star-s-speed-don-lincolnAll the stars in a spiral galaxy rotate around a center -- but to astronomers, the speed that each star travels wasn't making sense. Why didn't stars slow down toward the edges as expected? Don Lincoln explains how a mysterious force called dark matter is (possibly) the answer -- and why the search for an answer matters.Lesson by Don Lincoln, animation by RocknRoll Animation. Learn more about your ad choices. Visit megaphone.fm/adchoices

Share this episode

Similar Episodes

Mr. Jay Betrayal Trauma, Blindness and Breakthrough Healing

Apr 13, 2026 ·41m

Gabor Kadas Ending Loneliness with Verified Connection.mp3

Apr 13, 2026 ·40m

Kristen Crabtree From Abuse to Empowered Becoming

Apr 13, 2026 ·64m

Steve Ward Breaking CHAINS and Finding Hope in Recovery

Apr 13, 2026 ·48m

Garret Biss Veteran Trauma, Meaning and Recovery

Apr 9, 2026 ·55m

Adriene Caldwell Foster Care Trauma to Unbroken Hope

Apr 1, 2026 ·42m

Similar Podcasts

La Finanza in Soldoni Massimo Famularo - Hypercast Podcast e newsletter indipendente di informazione ed educazione finanziaria.Nessuno mi paga per vendervi niente e voi non mi pagate per dirvi in cosa investire. Newsletter http://lafinanzainsoldoni.substack.com/Youtubehttps://www.youtube.com/c/MassimoFamularoBloghttps://massimofamularo.com/X(ex-Twitter)https://x.com/MassimoFamularo---Questo podcast fa parte di Hypercast Network — 📧 Per proposte commerciali scrivi a: [email protected] TED Talks Society and Culture Thought-provoking videos about life and being human, with ideas from business leaders, psychologists and researchers speaking onstage at the TED conference, TEDx events and partner events around the world. You can also download these and many other videos free on TED.com, with an interactive English transcript and subtitles in up to 80 languages. TED is a nonprofit devoted to Ideas Worth Spreading. TSOB w/ Dr. G--The Sex Ed of Blackfolk Dr. Tracie Q. Gilbert: Sexuality Educator and Podcaster T.S.O.B. with Dr. G is a weekly podcast that offers intellectual table talk about race and sexuality. Join educator and researcher Dr. Tracie Q. Gilbert as she chats with amazing sex educators, counselors, and therapists, applying a professional lens to sexiness, health and healing in the new millennium. Scar(r)ed For Life pjwrench A nostalgic, banter-full and analytical delve into all the TV shows, movies, games, books, and other media that scared (and scarred!) us s***less when we were children in the 90s. Ranging from the infamous to the obscure, from The Wizard of Oz to The Demon Headmaster, from Tomb Raider to fairytales, we’ve offer up 2 classic pieces of entertainment to reminisce and wax lyrical. Enjoy!

Frequently Asked Questions

How long is this episode of TED-Ed?

This episode is 5 minutes long.

When was this TED-Ed episode published?

This episode was published on May 22, 2026.

What is this episode about?

View full lesson: http://ed.ted.com/lessons/dark-matter-how-does-it-explain-a-star-s-speed-don-lincolnAll the stars in a spiral galaxy rotate around a center -- but to astronomers, the speed that each star travels wasn't making sense. Why didn't...

Can I download this TED-Ed 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.