A black hole is an object in space with an infinite density and no characteristic boundary - called a singularity. Thus a black hole does not have a "size" but it's size is based on it's event horizon, rather than it's physical pr...
http://wiki.answers.com/Q/What_is_the_size_of_a_black_h...
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How big is a black hole? ... How big is a black hole?; ------------------------; There are at least two different ways to describe how big something is. We can say how much mass it ... (That's why we decided to let you jump into a big black hole instead of a small one: we wanted you to survive at least until you got inside.)
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cosmology.berkeley.edu/Education/BHfaq.html
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The size of a black hole is the size of the Schwarzschild radius. It is also called the event horizon. Once something is within this radius, it's gone; it will inevitably fall into the singularity at the center of the black hole. The deriva...
http://library.thinkquest.org/C007571/english/advance/c...
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The properties of this radiation can be used to estimate a black hole's mass and how quickly it is gobbling up its surroundings. The team analysed how many galactic black holes of various masses were present at each stage in the universe's ...
http://www.newscientist.com/article/dn14653
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Ultramassive black holes weighing as much as 50 billion suns could be lurking out there ... Ultramassive black hole ... Just how big can a black hole grow? Two astronomers reckon they have worked out the answer: colossal black holes with a mass of up to 50 billion suns could be lurking out there - but that's the limit.
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www.newscientist.com/article/dn14653-how-big-can-a-blac...
www.newscientist.com/article/dn14653-how-big-can-a-black-hole-grow.html
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"[The] results seem to indicate that the way supermassive black holes produce X-rays has remained essentially the same from a very early date in the Universe," said Schwartz. "This implies that the central black hole engine in a massive galaxy was formed very soon after the big bang."
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www.theregister.co.uk/2004/11/24/supermassive_blackhole...
www.theregister.co.uk/2004/11/24/supermassive_blackhole/
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The orbit of a particle near a black hole depends on the curvature of space around the black hole, which also depends on how fast the black hole is spinning. ... New Twists on the Milky Way's Big Black Hole ; By Robert Roy Britt; Senior Science Writer; posted: 06:00 am ET; 24 November 2003;
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www.space.com/scienceastronomy/mystery_monday_031124.ht...
www.space.com/scienceastronomy/mystery_monday_031124.html
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The black hole that lies at the heart of our galaxy is much smaller than previously known. It could fit within the space between the Earth and the Sun, according to a new study. ... Milky Way's Big Black Hole Gets Downsized ; By Ker Than; Staff Writer; posted: 02 November 2005; 01:01 pm ET;
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www.space.com/scienceastronomy/051102_black_hole.html
www.space.com/scienceastronomy/051102_black_hole.html
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