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Supermassive black holes play a stealthy role in two major types of galaxies in the universe, bulking up until they are big enough to effectively shut down the formation of new stars, scientists have found.
The new results explain why scientists have observed in the past that massive galaxies have fewer young stars. Black holes, monstrous heaps of dense matter, grow at a different rate than the galaxies that surround them. But once a black holes reach a critical mass and become too large for its host galaxy, it zaps away nearly all the gas needed for young stars to form.
"Supermassive black holes in these giant galaxies create unfriendly places for stars to form," said Sukyoung K. Yi of Yonsei University in Seoul, who led the research team. "If you want to find lots of young stars, look to the smaller galaxies."
Originally posted by INc2006
not bad, so basically the black hole keeps growing in a galaxy, then it gets too big no stars form in the galaxy, then the balck hole keeps growing until it swallows up the whole galaxy and all you'll see then is darkness and blackness, dat close?