... Behemoth black hole found in an unlikely place . ... Texas-sized computer finds most massive black hole in galaxy M87 . ... Astronomers Karl Gebhardt from The University of Texas at Austin and Jens Thomas from the Max Planck Institute for Extraterrestrial Physics have used new computer modeling techniques to discover that the black hole at the heart of M87, one of the largest nearby giant galaxies, is two to three times more massive than previously thought. ... Giant galaxy M87 finally sized up . ...