https://www.live-feeds.com/feed/james-webb-space-telescope-looks-back-in-time-finds-our-ancient-universe-wasn-t-as-pure-as-we-thoughtContinuously updated, source-cited coverage. https://www.live-feeds.com/feed/james-webb-space-telescope-looks-back-in-time-finds-our-ancient-universe-wasn-t-as-pure-as-we-thoughthttps://www.live-feeds.com/feed/james-webb-space-telescope-looks-back-in-time-finds-our-ancient-universe-wasn-t-as-pure-as-we-thought#u91904Wed, 30 Sep 2026 23:02:46 +0000The James Webb Space Telescope has discovered that galaxies 500 million years after the Big Bang already contained heavy elements, including oxygen, carbon, and silicon. This challenges the previous notion that the early universe was pristine. Astronomers have detected six different metal types in galaxies at redshift 9, indicating that the universe was chemically enriched far earlier than once believed.Why it mattersThe James Webb Space Telescope's findings provide insights into the formation and evolution of the universe. The early universe's chemical composition has significant im