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Stories about: central core

Dark Matter Is Essential for Supermassive Black Holes Don't ask me when the end of the world will come, I can't tell you, but one thing is for certain: a black hole could possibly trigger one. Especially taking into consideration the fact that about 30 percent of the total black holes population in the universe is thought to wander alone through space. Add the... 11 January 2008 04:56 GMT What is a Galaxy? Believe it or not, most of the stars and cosmic objects in the visible universe are actually impossible to observe with the naked eye. Only a handful of galaxies and star clusters in the near vicinity of our galaxy can be spotted without the help of optical tools. More than 99 percent of the stars viewed on the nigh... 28 December 2007 11:10 GMT