A monster galaxy from the early universe shows that the cosmos was rich with oxygen when it was only less than 3% of its present age, astronomers have found. The discovery raises questions about how early life could have first appeared in the universe.
This isn't the first time astronomers have looked at that enigmatic galaxy, named JADES-GS-z11-0. It was first spotted with the James Webb Space Telescope (JWST) through a survey of some of the deepest, earliest galaxies ever discovered. At that time, the galaxy was estimated to exist only 100 million years after the Big Bang — something that should be impossible with our current understanding of cosmology.
