Technology
New cosmic lens measurements deepen the Hubble tension mystery
2025-12-09 09:26
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Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their results match “local” measurements but clash with early-universe estimates, st...
Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their results match “local” measurements but clash with early-universe estimates, strengthening the mysterious Hubble tension. This mismatch could point to new physics rather than observational error. Researchers now aim to boost precision to solve the puzzle.
