Galactic lenses like this one, which is the closest astronomers have ever found, were predicted by Albert Einstein in 1936 from his theory of general relativity. At the time, he thought such an ...

They are one of the best examples we have of gravitational lensing–a phenomenon that Albert Einstein predicted in 1915. The ring and other findings are detailed in a study published February 10 ...

A space telescope has made a significant discovery, uncovering its first Einstein ring, which scientists believe will help us ...