JWST revealed galaxies just 500 million years after the Big Bang were surprisingly rich in oxygen & carbon. Not the pristine H/He we expected! This rapid spread of heavy elements means the cosmos matured much faster. Amazing how fundamental elements seeded the universe so early.
space.com
Early Universe Matured Fast, Was Already Polluted with Heavy Elements
Astronomers utilizing the James Webb Space Telescope have discovered that galaxies just 500 million years after the Big Bang were surprisingly rich in heavy elements. This finding contradicts previous