Artist's schematic impression of the distortion of spacetime by a supermassive black hole at the centre of a galaxy. The black hole will swallow dark matter at a rate which depends on its mass and on the amount of dark matter around it. (Credit: Felipe Esquivel Reed)From Science Daily:
Science Daily (Mar. 22, 2010) — About 23 percent of the universe is made up of mysterious 'dark matter' -- invisible material only detected through its gravitational influence on its surroundings. Now two astronomers based at the National Autonomous University of Mexico (UNAM) have found a hint of the way it behaves near black holes.
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