Webb Space Telescope Unveils New Insights into the Hubble Constant Tension

The "Hubble Tension," which refers to the discrepancy between the observed and predicted expansion rate of the universe, remains a mystery. The James Webb Space Telescope (JWST) has provided new measurements to refine the Hubble constant, but questions persist about the universe's rapid expansion and potential underlying cosmic phenomena. Webb's infrared vision has allowed for more precise observations of Cepheid variables, which are used as distance markers, and has confirmed the accuracy of previous Hubble measurements. However, the cause of the Hubble Tension, whether it be exotic dark energy, dark matter, a revision to our understanding of gravity, or measurement errors, remains unknown.