SciencefromBig Think3 weeks agoRing galaxies, the rarest galaxy type of all, are finally understoodRing galaxies, extremely rare (~1-in-10,000), form when head-on collisions produce outward-propagating density waves that trigger ring-shaped star formation.
SciencefromMail Online5 months agoWhooo's there? James Webb telescope spots rare 'Cosmic Owl' structureA unique cosmic image shows two ring galaxies colliding, captured 38 million years after the event by the James Webb Space Telescope.