Webb Telescope reveals central role of low-mass galaxies in reionization of Universe
Published
Beer-Sheva, Israel (SPX) Feb 29, 2024
The James Webb Space Telescope (JWST), developed by NASA and ESA, has just obtained the first spectra of very low-mass galaxies less than a billion years after the Big Bang. A technological feat made possible by the unique combination of JWST sensitivity and the gravitational lensing effect of the Abell 2744 cluster: nearby galaxies act like cosmic magnifiers, distorting space and amplifying the