James Webb telescope finds ancient galaxy larger than our Milky Way, and it’s threatening to upend cosmology

The James Webb Space Telescope (JWST) has found a galaxy in the early universe that’s so massive, it shouldn’t exist, posing a “significant challenge” to the standard model of cosmology, according to the study authors.

The galaxy, called ZF-UDS-7329, contains more stars than the Milky Way, despite having formed only 800 million years into the universe’s 13.8 billion-year life span. This means they were somehow born without dark matter seeding their formation, contrary to what the standard model of galaxy formation suggests.

Source link: https://www.livescience.com/space/cosmology/james-webb-telescope-finds-ancient-galaxy-larger-than-our-milky-way-and-its-threatening-to-upend-cosmology by ben.turner@futurenet.com (Ben Turner) at www.livescience.com