this post was submitted on 15 Apr 2024
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Astronomers have used the James Webb and Hubble space telescopes to confirm one of the most troubling conundrums in all of physics — that the universe appears to be expanding at bafflingly different speeds depending on where we look.

This problem, known as the Hubble Tension, has the potential to alter or even upend cosmology altogether. In 2019, measurements by the Hubble Space Telescope confirmed the puzzle was real; in 2023, even more precise measurements from the James Webb Space Telescope (JWST) cemented the discrepancy.

Now, a triple-check by both telescopes working together appears to have put the possibility of any measurement error to bed for good. The study, published February 6 in the Astrophysical Journal Letters, suggests that there may be something seriously wrong with our understanding of the universe.

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[–] [email protected] 58 points 7 months ago (13 children)

I just want our universe to be cyclic, heat death is depressing

[–] [email protected] 32 points 7 months ago (6 children)

Even though I won't be there for it, somehow heat death makes me very sad.

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[–] [email protected] 70 points 7 months ago (5 children)

The best moments in science are when we say, “wait, this doesn’t work.”

[–] [email protected] 35 points 7 months ago (2 children)

That's exactly the opposite of how religion works and the reason why I firmly believe that there should be a clear separation between state and church.

People can believe in whatever delusions they want as long as they don't force them on me.

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[–] [email protected] 5 points 7 months ago (2 children)

Is it because our universe is actually some type of organism and it has growth in different areas more than others?

[–] [email protected] 31 points 7 months ago* (last edited 7 months ago)

The summary is misleading. We have two ways of calculating expansion that, according to our current understanding, should arrive at the same answer, but they're off by about 10%. It's more a question of how we look than where.

Edit: corrected "title" to "summary"

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[–] [email protected] 13 points 7 months ago (3 children)

I actually had no idea that an irregularly expanding universe was the conflicting theory.

From my armchair astrophysicist perspective, I just assumed it couldn't be a perfect sphere due to the background radiation map.

Obviously scientific method and all, but this is super cool that for realisies it might change some minds.

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[–] [email protected] 99 points 7 months ago (2 children)

Yesssss I yearn for new physics

[–] [email protected] 7 points 7 months ago (5 children)

As a science bitch I’ve never believed in the Big Bang… I think everything has always been and will always be and it goes on forever in every direction and when I think about that my feet feel weird

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[–] [email protected] 35 points 7 months ago* (last edited 7 months ago) (2 children)

The prospect of irregular and unpredictable physics gives me anxiety

[–] [email protected] 13 points 7 months ago (2 children)

This article https://nautil.us/chaos-makes-the-multiverse-unnecessary-236664/ made me very uncomfortable back when it was published. It takes what you say to the philosophical limit.

[–] [email protected] 3 points 7 months ago
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[–] [email protected] 17 points 7 months ago* (last edited 7 months ago) (3 children)

With the universe is not being locally real, and now this... Oh man. Exciting times for sure.

[–] [email protected] 6 points 7 months ago (11 children)

With the universe is not being locally real

What do you mean by this?

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[–] [email protected] 4 points 7 months ago (1 children)

eli5 this universe not real thing. i can never wrap my head around it.

[–] [email protected] 9 points 7 months ago

It's as real as anything gets. What constitutes as "real" is more of a philosophy questions than physics question. Make up your own answer.

[–] [email protected] 13 points 7 months ago* (last edited 7 months ago) (3 children)

Yes, discovery is awesome, and this is some crazy shit— it’s just that I prefer that the the rules that govern time and space make sense, lol.

[–] [email protected] 26 points 7 months ago (1 children)

It makes sense — we just don’t understand it yet 😀

[–] [email protected] 6 points 7 months ago
[–] [email protected] 7 points 7 months ago (2 children)

I predict bubbles warping time but not space, thus distorting the apparent speeds of objects we see through them. Star Trek taught me that anything is possible. 😆

And just imagine the new fields of math such a discovery would create...

[–] [email protected] 2 points 7 months ago (1 children)

If something warps time, doesn't it inherently warp space, and vice versa?

[–] [email protected] 3 points 7 months ago

Normally yes, but if an exception was found then that too would fundamentally change what we think we know. I doubt it will come down to anything quite that simple, but on the other hand gravity is one of those forces that we still don't completely understand and when dealing with things on a galactic scale perhaps this new observation will start to crack open that particular mystery. It's easy to speculate at this point, but really my hope is that this will lead to a better understanding of something huge. I think the most boring outcome of this would be something like "oops we made a mistake in our math."

[–] [email protected] 8 points 7 months ago (1 children)

“I’m just going to round it anyways” - Engineering

[–] [email protected] 3 points 7 months ago

The Intel floating-point math error strikes again.

[–] [email protected] 9 points 7 months ago

It's turtles all the way down.

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