A new model that suggests dark energy — the mysterious force driving the acceleration of the universe's expansion — rose early in the cosmos could cure two of the most pressing astrophysical headaches.
One of these headaches is the "Hubble tension," which refers to a longstanding apparent disparity between the measured rate at which the universe is expanding. The other is the strange detection of bright galaxies in the early universe, during a time when scientists had thought the cosmos should be sparsely populated. The latter problem began to emerge after the James Webb Space Telescope (JWST) started making observations of the early and distant universe.
