Cosmological coupling — a newly-predicted phenomenon in Albert Einstein’s theory of gravity — allows black holes to grow in mass without consuming gas or stars, according to a team of astrophysicists from the University of Hawai’i at Mānoa and elsewhere. An artist’s impression of a supermassive black hole. Image credit: University of Hawai’i at Mānoa. “We’re really saying two things at once: that there’s evidence the typical...
