Why Scientists Worldwide are Panicked by the Recent JWST Discovery from 10.8 Billion Years Ago
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- Опубліковано 9 жов 2024
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The universe is expanding, and the rate of this expansion is referred to as the Hubble constant, a crucial factor in understanding both the evolution and the future of our cosmos. It's like a balloon inflating-this constant measures how quickly that balloon is expanding. However, measuring the Hubble constant is proving to be quite tricky. Different methods yield different results, leading to what's known as the "Hubble tension."
Astronomers use two primary methods to measure the Hubble constant: distance indicators like supernovae and cosmic afterglow from the early universe, known as the Cosmic Microwave Background (CMB). These methods should give the same value for the expansion rate, but they don't. Supernovae indicate a faster rate of 74 kilometers per second per megaparsec, while the CMB suggests a slower rate of 67.4 kilometers per second per megaparsec. This discrepancy has baffled scientists for years.
Adding fuel to this debate, the James Webb Space Telescope (JWST) recently observed a distant supernova called "Supernova Hope." This explosion occurred around 10.3 billion years ago when the universe was 3.5 billion years old. By analyzing this supernova, scientists reported a Hubble constant value of 75.4 kilometers per second per megaparsec, aligning with local universe measurements but conflicting with early universe data, worsening the Hubble tension.
The Hubble tension isn't the only cosmological mystery. Another problem, known as the S8 tension, revolves around how matter clumps together in the universe. Recent large-scale simulations using supercomputers like FLAMINGO have attempted to solve this by including more detailed data about both dark matter and regular matter. While these simulations have provided insights into galaxy formation, they haven't yet resolved the issue. Scientists remain optimistic, though, as further observations from the JWST and other instruments may eventually offer the answers.
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I had no idea we had a crisis in cosmology. A crisis in cosmetology yes but not cosmology
I've been cutting my own hair since 2020, even let my 7 year old Daughter have a go at it. I figure as long as I can't see the back, it's probably fine lol.. One of those crisis as an opportunity moments.
My first thought; YES, bring it on. We need a massive reset and a return to simplicity. I would love to live like the Amish, but without the focus on religion.
Yeah, manufacturing and medicine sucks....
@@HansZarkovPhD That's a gross oversimplification.
I don't understand how the universe is expanding with the existence of the Great Attractor that is allegedly pulling everything, including all our local galaxies, towards it with its overwhelming gravity.
Neither do they. That's the problem, lol 🤣
...it's not pulling everything tho. In our neighborhood it is, but it's not affecting the entire universe. The Great Attractor is mind boggling huge, but compared to the entire universe, it's nothing.
If it pulling our galaxie towards it how is it we are about to collide with adromeda
The great attractor is affecting an area of space a few hundred million light years in size.
The observable universe is about 93 billion lightyears in size.
We have been mapping the directions of everything we can possibly see for decades. Everything is moving away from everything and we can see that in the red shift of the stars we are looking at.
The usual rate of expansion is the hubble flow.
When gravity overcomes the hubble flow, it changes the expected redshift, and that's called pecular velocity. We can measure that to find out what's being pulled where and by what.
Now here's the thing that's going to really bake your noodle.
The great attractor, and the even larger structures of the universe that we have discovered, can pull all they want. That's gravity. Big stuff floating around in the dark. Gravity is only a local effect though. Once you move out of the gravity field, you're out.
The hubble flow is measuring how fast space it's self Is expanding.
It's not effected by gravity.
Things aren't just floating away from each other, all at exactly the same rate, all over the universe.
The space between stars is actually expanding.
At exactly the same rate. All over the observable universe.
And it seems to be speeding up.
It could be that everything is traveling in a loop. On one side everything is moving away, then it all turns around and comes back.
Really awesome content. With my limited understanding and Non-science background I think I understood most of it.
I wonder if the Hubble tension will remain in the future or if it will be replaced by the S8 - Tension model.
It didnt dawn on me yet, why astrologists are so deeply thinking about exactly that tension model. What is so fundamental about it? Does it allow us to calculate the light year distances between stars? Or what is this model normally used for?
Has it ever occurred to anyone that the Hubble Constant might not be constant?
Or Hubble's...
If I recall correctly these measurements assume the entire universe is expanding and it could be. However, all things in nature from atoms, to solar systems and galaxies, everything is always rotating around a central core. If we account for this rotational velocity, the calculations may make more sense.
The universe is spreading itself out to maximise volume coverage
Sophon has messed with us. Its not just a plot from a novel anymore... We are under attack, the science, it doesn't add up.
Great presentation. One more reason to look for alternatives to the Big Bang theory of the evolution of the universe. Reply to this post if you would like to see the correct model.
What if all galaxies are sliding around on a bubble . And matter are travels around this bubble. My explain everything.
Yes alien civilizations interventions
I feel with what James Web has recently found outside our border of our universe it just makes sense to the Dimensional pane collision idea.
And our "universe" is a series of "universes" being created as the Dpanes interact causing an energy release of immense magnitude.
And we are part of a much vaster structure maybe even of infinite size.
What is the universe expanding in to
But there is also an effect in the measurements that is often underestimated:
The "tired" and sometimes slowing light in the redshift range as galaxies move further and further away. This effect then automatically leads to different measurements... 🎴
Your galaxy is TOO CLUMPY.
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