Black hole 660 million times as massive as Sun
"This is the first time that ALMA has probed the orbital motion of cold molecular gas well inside the gravitational sphere of influence of a supermassive black hole," said Aaron Barth, professor of physics and astronomy from the University of California-Irvine.
The collision of two black holes holes - a tremendously powerful event detected for the first time ever by the Laser Interferometer Gravitational-Wave Observatory, or LIGO. Pic: REUTERS/Caltech/MIT/LIGO Laboratory/Handout via Reuters/Files