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/ 1 November 2007

US astronomers spot massive black hole

United States astronomers have discovered the biggest black hole orbiting a star 1,8-million light-years from Earth in the constellation Cassiopeia, with a record-setting mass of 24 to 33 times that of our Sun, Nasa said on Tuesday. The massive newcomer beats the previous stellar-mass black hole discovered on October 17 in the M33 galaxy that has 16 times the mass of our Sun.