Two primordial galaxies are among the first discovered thanks to the James Webb Space Telescope
Two articles published in “The Astrophysical Journal Letters” report the results of the analysis of observations of the Abell 2744 galaxy cluster and the surrounding area with the James Webb Space Telescope. Two teams of researchers led respectively by Marco Castellano of the National Institute for Astrophysics in Rome, Italy, and by Rohan Naidu of the Harvard-Smithsonian Center for Astrophysics of MIT examined in particular two very distant galaxies. The galaxy called GLASS-z12 by the second team could be the oldest identified so far because according to estimates, it dates back to 350 million years after the Big Bang. The other galaxy, called GLASS-z10, is estimated to date back to 450 million years after the Big Bang.
