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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

Your body is build for movement — so make it a part of your day #TEDTalks

Can a five-minute walk change how you feel all day? Exercise scientist Keith Diaz shows how your body is built for the kind of movement that modern life has quietly erased — and suggests something refreshingly doable: making time for small doses of movement sprinkled throughout the day, as a way to boost your brain…

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Can a five-minute walk change how you feel all day? Exercise scientist Keith Diaz shows how your body is built for the kind of movement that modern life has quietly erased — and suggests something refreshingly doable: making time for small doses of movement sprinkled throughout the day, as a way to boost your brain and body.

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Inside Dubai’s Mission to Build the City of the Future | His Excellency Khalfan Belhoul | TED

What does it look like when a city becomes a laboratory for innovation? His Excellency Khalfan Belhoul, CEO of the Dubai Future Foundation, explains why Dubai is cutting the bureaucratic red tape to experiment with big ideas in everything from AI and emerging tech to finance and climate solutions. The future, he says, depends on…

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What does it look like when a city becomes a laboratory for innovation? His Excellency Khalfan Belhoul, CEO of the Dubai Future Foundation, explains why Dubai is cutting the bureaucratic red tape to experiment with big ideas in everything from AI and emerging tech to finance and climate solutions. The future, he says, depends on those willing to test it. (This conversation is hosted by TED’s Whitney Pennington Rodgers.) (Recorded at TED@BCG on October 23, 2025)

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The Iran war has cost billions — but its toll goes far beyond the global economy says @Ian_Bremmer

Six months into a catastrophic war in Iran — and with no end in sight for the war in Ukraine — the world is embroiled in conflicts with no apparent exit plan. In this interview, political scientist and Eurasia Group founder Ian Bremmer breaks down what these wars are costing people around the world —…

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Six months into a catastrophic war in Iran — and with no end in sight for the war in Ukraine — the world is embroiled in conflicts with no apparent exit plan. In this interview, political scientist and Eurasia Group founder Ian Bremmer breaks down what these wars are costing people around the world — and which one he’s more worried might spiral out of control. (This interview, hosted by TED’s Helen Walters, was recorded on July 28, 2026.)

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