The heaviest pair of black holes ever seen weighs 28 billion times more than the sun

[ad_1] Two supermassive black holes found in “fossil galaxies” created by collisions are so massive that they refuse to collide and merge. The discovery could explain why, although supermassive black hole mergers are theoretically predicted, they have never been observed in progress. The supermassive black hole system is located in the elliptical galaxy B2 0402+379. … Read more