What is Dark Energy? FEB 05, 2024. By Chelsea Gohd.

[socratus]

What is Dark Energy? Inside our accelerating, expanding Universe
FEB 05, 2024. Chelsea Gohd.
What Exactly is Dark Energy?
Right now, dark energy is just the name that astronomers gave to the mysterious "something"
that is causing the universe to expand at an accelerated rate.
Dark energy has been described by some as having the effect of a negative pressure
that is pushing space outward. However, we don't know if dark energy has the effect
of any type of force at all. There are many ideas floating around about what dark energy
could possibly be. Here are four leading explanations for dark energy.
Keep in mind that it's possible it's something else entirely.
Vacuum Energy:
Some scientists think that dark energy is a fundamental, ever-present background energy
in space known as vacuum energy, which could be equal to the cosmological constant,
a mathematical term in the equations of Einstein's theory of general relativity.
Originally, the constant existed to counterbalance gravity, resulting in a static universe.
But when Hubble confirmed that the universe was actually expanding,
Einstein removed the constant, calling it “my biggest blunder,” according to physicist George Gamow.
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By Chelsea Gohd
NASA's Jet Propulsion Laboratory

What is Dark Energy? Inside our accelerating, expanding Universe - NASA Science

Some 13.8 billion years ago, the universe began with a rapid expansion we call the big bang. After this initial expansion, which lasted a fraction of a second, gravity started to slow the universe down. But the cosmos wouldn’t stay this way. Nine billion years after the universe began, its...

science.nasa.gov

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[socratus]

October 25, 2024. After Decades of Searching, Are Physicists Closing In on Dark Matter?
With no conclusive laboratory results, researchers are turning to other methods to find the elusive substance
/Dan Falk/
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.... physicists and astronomers believe that visible matter is just the tip of the iceberg, so to speak,
and that some kind of unseen dark matter must be out there as well, accounting for some 85 percent
of the mass of the universe. No one knows what dark matter is made of, but scientists are confident
it’s something that doesn’t interact with electromagnetic radiation, such as light—or else we’d be able to see it.
But decades of searching have failed to yield any direct detections of this dark matter,
leaving researchers wondering if they need to broaden their search strategies,
or perhaps even rethink how gravity works.

The case for the existence of dark matter goes back to the 1930s, when astronomers analyzed
the rates at which galaxies rotate and found there isn’t enough visible matter to account
for the observed spin-rates. These so-called rotation curves, which plot the speed at which stars
are moving as a function of their distance from a galaxy’s center, couldn’t be accounted for based
on the amount of stars, gas and dust that’s visible within each galaxy.
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After Decades of Searching, Are Physicists Closing In on Dark Matter?

With no conclusive laboratory results, researchers are turning to other methods to find the elusive substance

www.smithsonianmag.com

 

[socratus]

After Decades of Searching, Are Physicists Closing In on Dark Matter?

With no conclusive laboratory results, researchers are turning to other methods to find the elusive substance

www.smithsonianmag.com

Dark matter was invented because of the problem of gravity in galaxy systems.
The concept of "gravity" doesn't work in galaxy systems.
This means that "gravity" is not a universal theory and doesn't work in the universe as a whole.

 

[Taxslave2]

You are making this far too complicated. Dark energy is just socialism at work.

 

[socratus]

You are making this far too complicated. Dark energy is just socialism at work.

red russian energy socialism was bad
"dark energy socialism": good or bad?
what about green or blue energy socialism?
sorry to make things too complicated for you.

 

[Jinentonix]

After Decades of Searching, Are Physicists Closing In on Dark Matter?

With no conclusive laboratory results, researchers are turning to other methods to find the elusive substance

www.smithsonianmag.com

Dark matter was invented because of the problem of gravity in galaxy systems.
The concept of "gravity" doesn't work in galaxy systems.
This means that "gravity" is not a universal theory and doesn't work in the universe as a whole.

The thing is, gravity has never been scientifically defined anyway. We have the Law of Gravity but there are several theories as to exactly what kind of force gravity actually is. Dark matter could be a possibility. I mean if there's dark energy it would seem logical that its source would be dark matter.

 

[socratus]

The thing is, gravity has never been scientifically defined anyway. We have the Law of Gravity but there are several theories as to exactly what kind of force gravity actually is. Dark matter could be a possibility. I mean if there's dark energy it would seem logical that its source would be dark matter.

dark energy + dark matter = source of ordinary matter

 

[Jinentonix]

dark energy + dark matter = source of ordinary matter

I dunno man. Your graph only shows the proportional percentage. It's a bit of a stretch to assume your equation from that. I'm not saying it's incorrect but I'm'a need more than that graph to think seriously about it.