#NASAWebb has spotted a reverberating light echo spreading across space. As a light pulse travels through space, it illuminates previously unseen material, revealing intricate structures resembling wood grain: https://t.co/G9iKrfDVuP #AAS245 pic.twitter.com/pQEPgHkyDx

— Space Telescope Science Institute (@SpaceTelescope) January 14, 2025