Einstein predicted the existence of gravitationally-warped rings of light in 1915. Now, a new one has been discovered just a ...

Traditional black holes, as predicted by Albert Einstein's theory of General Relativity, contain what are known as ...

Euclid telescope has located a rare hoop of light called an "Einstein ring" in a nearby elliptical galaxy. Though the galaxy has been on humans' radar for 140 years, its halo is new—and it has a lot ...