Lyman-Alpha-galaxy-mergers-768×660

The galaxy EGSY8p7, a bright galaxy in the early Universe where light emission is seen from, among other things, excited hydrogen atoms — Lyman-alpha emission. In the bottom two panels, Webb’s high sensitivity picks out this distant galaxy along with its two companion galaxies, where previous observations saw only one larger galaxy in its place. (ESA/Webb, NASA & CSA, S. Finkelstein, M. Bagley, R. Larson/UT Austin/A. Pagan/STScI/C. Witten, M. Zamani)