Since its launch in December of 2021, the James Webb Space Telescope (JWST) has spotted record-setting objects all across the Universe, including at the greatest distances ever seen.
Many distant galaxies are energetic and show signatures of emission lines from specific atoms and molecules, particularly hydrogen. However, the Lyman-α line has never been seen earlier than 550 million years after the Big Bang.
Until now. With the discovery and spectroscopic follow-up on galaxy JADES-GS-z13-1-LA, we now have strong evidence for that emission line from a galaxy just 326 million years after the Big Bang. The question is: how? READ MORE...