Astronomers find triple interactions of supermassive black holes to be common in early universe New cosmological computer simulations produced by a team of astronomers from Northwestern University, Harvard University and the University of Michigan show for the first time that supermassive black holes (SMBHs), which exist at the centers of nearly all galaxies, often come together during triple galaxy interactions. view more (2007-01-09)
Monster galaxy pileup sighted Four galaxies are slamming into each other and kicking up billions of stars in one of the largest cosmic smash-ups ever observed. view more (2007-08-07)