Y ale astronomers have announced the discovery of a galaxy with nine concentric rings—the most rings ever seen in a single galaxy. At more than twice the diameter of our Milky Way, it stretches ...
Galaxy LEDA 1313424 is a beauty. It is 2.5 times the size of the Milky Way and has something no other galaxy has: A series of concentric rings, nine to be exact. This is more than other known ...
Though still only in the prototype stage, this flat lens could one day be used on space telescopes, and perhaps even on ...