The James Webb Space Telescope has discovered the most distant galaxy ever observed, JADES-GS-z14-0, seen as it existed just 300 million years after the Big Bang. Its unexpected brightness and chemical complexity suggest rapid early star formation, challenging long-standing theories about how the first galaxies evolved in the early universe.​The James Webb Space Telescope has discovered the most distant galaxy ever observed, JADES-GS-z14-0, seen as it existed just 300 million years after the Big Bang. Its unexpected brightness and chemical complexity suggest rapid early star formation, challenging long-standing theories about how the first galaxies evolved in the early universe.  ​ science