ALMA, aided by a gravitational lens, imaged the outflow, or "wind," from a galaxy seen when the universe was only one billion years old. The ALMA image (circle call out) shows the location of hydroxyl (OH) molecules. These molecules trace the location of star-forming gas as it is fleeing the galaxy, driven by either supernovas or a black-hole powered “wind.” The background star field (Blanco Telescope Dark Energy Survey) shows the location of the galaxy. The circular, double-lobe shape of the distant galaxy is due to the distortion caused by the cosmic magnifying effect of an intervening galaxy.
Credit: ALMA (ESO/NAOJ/NRAO), J. Spilker/UT-Austin; NRAO/AUI/NSF, S. Dagnello; AURA/NSF