The Hubble tension persists in cosmology, arising from conflicting measurements of the universe’s expansion rate. Recent studies suggest flaws in the prevailing Λ cold dark matter (lambda CDM) model. While cosmic microwave background (CMB) analysis supports a flat universe expanding at 68 km/s/Mpc, the cosmic distance ladder, including Cepheid variable stars, yields a higher rate of 73 km/s/Mpc. Investigations using NASA’s James Webb Space Telescope (JWST) validate earlier Hubble findings, reinforcing the tension’s reality. Despite advancements, the mystery behind this discrepancy persists, urging cosmologists to explore alternative universe models for a comprehensive understanding.
The Cosmological Puzzle: Unraveling the Hubble Tension and Exploring Universe Models
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