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Everything you can observe — stars, planets, galaxies — is only a fraction of what exists #TEDTalks

The universe that we know, with its luminous stars and orbiting planets, is largely made up of elements we can’t actually see — like dark energy and dark matter — and therefore don’t fully understand. Theoretical physicist Chanda Prescod-Weinstein takes us inside the search for this cosmos-shaping invisible matter and explains how, with the help…

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The universe that we know, with its luminous stars and orbiting planets, is largely made up of elements we can’t actually see — like dark energy and dark matter — and therefore don’t fully understand. Theoretical physicist Chanda Prescod-Weinstein takes us inside the search for this cosmos-shaping invisible matter and explains how, with the help of a new generation of telescopes, we could be closer to demystifying it than ever before. “The universe is more queer and fantastical than it looks to the naked eye,” she says. (If you want to hear more from Prescod-Weinstein, check out her episode on “The TED Interview” podcast.)

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10 Comments

10 Comments

  1. @vesawuoristo4162

    March 16, 2026 at 12:13 pm

    That’s not really a fact.

    • @jonnanderson6489

      March 16, 2026 at 1:49 pm

      Theory in search of evidence, kinda like string theory.

    • @MikeOBrien1945

      March 16, 2026 at 4:42 pm

      Can you disprove it?

    • @j1r2000

      March 16, 2026 at 4:48 pm

      @jonnanderson6489 small correction a theory is not “in search of evidence” a theory fits the evidence we have gathered so far. a hypothesis requires people to go out in search of evidence.

      and yes the semantics do actually matter as it leads to confusion around research if we not precise with our semantics

    • @damwizzthegreat

      March 16, 2026 at 7:42 pm

      ​@MikeOBrien1945not all that cant be proven is wrong not all that can be proven is correct

    • @MikeOBrien1945

      March 16, 2026 at 8:21 pm

      @damwizzthegreat That’s not disproving anything. Just a poignant saying. I’m sticking with the scientist…

  2. @leagarner3675

    March 16, 2026 at 8:05 pm

    We live in a dark matter halo?

  3. @davidcasey5976

    March 16, 2026 at 9:20 pm

    Her nose matters

  4. @JohnDoe-fy5kd

    March 17, 2026 at 8:26 pm

    She can smell 👃🏻 the invisible stuff

  5. @JohnDoe-fy5kd

    March 17, 2026 at 8:27 pm

    The nose knows

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People & Blogs

Could exposing kids to their fears help them thrive later on in life? #TEDTalks

Could exposing kids to their fears help them thrive later on in life? Exploring the science of exposure therapy, pediatric psychologist Kathryn Hecht shows how encouraging children to handle discomfort builds confidence and resilience.

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Could exposing kids to their fears help them thrive later on in life? Exploring the science of exposure therapy, pediatric psychologist Kathryn Hecht shows how encouraging children to handle discomfort builds confidence and resilience.

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What to Do When You’re Told There’s Nothing Left to Try | David Fajgenbaum, Kiah Williams | TED

What do you do when the world declares something impossible? When physician-scientist David Fajgenbaum was dying from a rare disease and social entrepreneur Kiah Williams was confronting the realities of economic hardship, they began asking a different question: What can I do today? In this conversation, they discuss how turning hope into action can drive…

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What do you do when the world declares something impossible? When physician-scientist David Fajgenbaum was dying from a rare disease and social entrepreneur Kiah Williams was confronting the realities of economic hardship, they began asking a different question: What can I do today? In this conversation, they discuss how turning hope into action can drive meaningful change — one step at a time. (This conversation is hosted by The Audacious Project’s Alexandra Tillmann) (Recorded at TEDNext 2025 on November 10, 2025.)

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Being surrounded by puppies all day and helping people in need? Talk about a DREAM job! #TEDTalks

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