https://www.uvic.ca/science/home/news/archive/when-galaxies-collide-in-search-of-supermassive-black-hole-pairs.php
When galaxies collide: In search of supermassive black hole pairs - University of Victoria
A University of Victoria astronomer has discovered an inspired method of finding the elusive pairing of supermassive black holes that mark merging galaxies, a...
when galaxies collidein search ofsupermassive black hole