The James Webb Space Telescope has confirmed the hypothesis of the accelerating expansion of the Universe, based on observations of pulsating stars and bright red giants. Researchers found that the rate of space expansion exceeds the Hubble constant by 5 km/s/Mpc.
To remind, the rate of expansion is measured by the number of kilometers that increase for each megaparsec (3.26 million light-years) per second.
Previously, discrepancies between measurements and theoretical models were recorded by the Hubble Telescope, but they were attributed to potential errors. Now, with more accurate data, scientists will need to explain this phenomenon, which may lead to the development of new theories. Possible explanations include the influence of dark energy, ancient magnetic fields, or new types of particles. We are entering an era of scientific inquiry that could radically change our understanding of the Universe.