We used the James Webb Space Telescope to study B14-65666, The Galaxy of the Big Three Dragons, a galaxy system from just 700–800 million years after the Big Bang. Our observations reveal it is two interacting galaxies, one compact and one more extended with clumpy structures, forming stars at very high rates. The system is dominated by very young stars, but also shows signs of older populations and different amounts of dust. The galaxies are in a starburst phase, and their motion suggests they are merging. Studying systems like B14-65666 helps us understand how galaxy mergers in the early Universe drive intense star formation and build up stellar mass.
You can find more information on this work in Prieto-Jiménez et al. (2025)