Very interesting.Astronomers using NASA's Chandra X-ray Observatory have found, for the first time, sound waves from a supermassive black hole. The "note" is the deepest ever detected from any object in our Universe. The tremendous amounts of energy carried by these sound waves may solve a longstanding problem in astrophysics.
More: http://science.nasa.gov/headlines/y2003/09sep_blackholesounds.htm?list760961 [Broken]
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