Astronomers built the largest map of “holes” in the universe to prove Einstein was right about gravity

Astronomers built the largest map of “holes” in the universe to prove Einstein was right about gravity

Since its discovery in 2008, astronomers have been puzzled by a cosmic mystery so vexing that it has even led some to question whether the general theory of relativity—Einstein’s masterpiece theory of gravity—is wrong on cosmic scales. The trouble is that light travelling through the universe does not seem to be affected by the gravity…