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

Story

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.

Leave a Comment