How Much Dark Matter Exists in the Universe?

If you believe the world’s leading physicists, the vast majority of matter in the universe is hiding in plain sight. For nearly a century, evidence has mounted that the gravitational pull necessary to keep clusters of galaxies intact, as well as stars within galaxies from flying apart, requires far more matter than we can see—matter, according to the experts, that has eluded our telescopes, because it does not give off light. Problem is, such “dark matter” has also eluded one specially designed detector after another that researchers have deployed to catch it. Which raises the big question: What if we have failed to find dark matter because it isn’t there? Join leading physicists on a scientific treasure hunt that has proved more challenging than anyone expected, and may ultimately require rethinking some of our most fundamental ideas about the universe.

This program is part of the BIG IDEAS SERIES, made possible with support from the JOHN TEMPLETON FOUNDATION.

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[RooBot]

Can't wait for the full length version!

[JoyStickGuru]

These "trailers" are super annoying. Can we PLEASE start getting full length talks regularly??

[njgjhrjd]

1:19 those cute ears in the background make her look like Gadget Hackwrench from Chip 'n' Dale cartoon :)

[derdagian]

There is not an individual more Gleeful to see, in living word, from Everyone, than Me!

Everyone is doing a wonderful job of simplifying this material, and the Visuals are phenomenal. Beautiful and complete description of the Really Conflicting hypotheses.

I’m just Happy! 😁🤓

[thecreativescience]

Why there are very less no. Of Subscribers on World Science festival

[martin]

The expansion of space-time, doesn’t appear to include that occupied by Galaxies etc, so between the negative curvature of the gravity wells of Galaxies are positive space-time curvatures, which may have the effect of increasing the gravity of those gravity wells, just as differentials in atmospheric pressures do.

[TheTwick]

I knew that!
I should have published 🤨

[sprintertwo]

I'm also confused. I'm a subscriber (with bell). Will I be "notified" when the real deal is eventually cast? Or is my subscription only for these dumb teaser clips?

[tomspace]

Search YouTube for "The Elements in Six Dimensions"

[Whiskey_Tango_Foxtrot_]

Well I think it's safe to say it's not the minority and it certainly does matter!

[quantumofspace]

The DARK ENERGY curtain is opening, gentlemen. Without fear of simplicity, imagine such a blooming UNIVERSE:
Quantum gravity is the vibrations of waves in a spherical quantum field. Or the wave pressure in the quantum membrane in the "rosebud", where the transfer of wave energy during the drift of the center in the "rosebud" is possible through the quantum of the string.
Quantum entanglement is a mixed transmission of information without intermediaries through the quantum of strings and with intermediaries in fractals from the quantum of "rosebuds".
The visible Universe is crumbling over the skeleton - Immeasurable a quantum of strings on which fractals grow, quantum "rosebuds" in the form of dark energy.

[wakjob]

None.
Stop spending my money.
Next question.

[philevatt]

Dark matter and dark energy - can’t see them, can’t measure them....no way to detect them. We just have to assume they are there or the math doesn’t

[samasterchef]

What was Bernie Sanders doing on stage? 🤔

[vymjrje]

It's an excuse to steal your work.

[nodarkmatternodarkenergy]

There is no dark matter! here is gravity warping space, simple.