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New cosmic lensing test sharpens the Hubble tension and hints at new physics
It’s a powerful technique, but small uncertainties at each step can add up, something critics argue may be behind the Hubble tension. The new study bypasses this entire ladder using a method called ...
Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...
Current physics is speeding toward a breaking point, as astronomers confirm that the Hubble tension in new data.
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