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James Webb telescope confirms there is something seriously wrong with our understanding of the universe (www.livescience.com)

submitted 7 months ago by [email protected] to c/[email protected]

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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] 13 points 7 months ago (2 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.

[–] [email protected] 17 points 7 months ago (1 children)

The summary is a lie. The crisis isn't over it expanding differently in different places. It's that two measurement methods give different results.

[–] [email protected] 6 points 7 months ago

I think it's important to add that those two different methods are on vastly different length scales

[–] [email protected] 1 points 7 months ago

Maybe we'll someday discover something as wacky as a "Strong Universal Material Force" that counteracts high energy expansion the same way the Strong Force keeps atoms together.