What is Hubble Tension? The crisis of cosmology leads to an anxiety to rethink what is known to a radical extent.
According to the National Aeronautics and Space Administration (PotIts summary in English), The Hubble tension is the current rate expansion of the universe It's faster than astronomers expect, based on our current understanding of its early stages and its evolution.
This situation has been named by many “Cosmology's Greatest Enigma”Because the idea has come to find a solution to this problem A new physics is necessary. If not, the Hubble tension Highlighting the errors between the two methods used Determines the expansion rate of the universes.
“Once measurement errors are ruled out, There remains the real and exciting possibility that we've got the universe wrong», confirms Adam Rice, Nobel Prize and body Johns Hopkins University Baltimore (USA).
Hubble tension: Light at the end of the tunnel
Although it might be interesting to do one Reviewing what is known So far, the course of the universe goes almost to zero, again to understand how it expands, Not encouraging at allIn some cases.
Finally, continue A new discovery in this line may be promising After all, things are not well understood.
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It turns out that the new metrics The James Webb Space Telescope Recommend that universe Local moves at a speed of approx 70 kilometers per second and megabarsec.
The aforementioned data discrepancy can now be resolved This still causes some headaches among members of the scientific community.
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“Based on this new data JWST and using three independent methods, We don't have strong evidence for the Hubble strain”, confirms Astronomer Wendy Freemanof University of Chicago (USA). “On the contrary, it seems Our standard cosmological model exists to explain the evolution of the universe”.
Still missing
Authors of the study published on the Preprints site arXivThey recognize it This is not the end of the story. However, they are well aware of the value of the action they have now taken Finally solving the famous Hubble tension puzzle.
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