Space, the final frontier: New secrets have been revealed about the monster black hole at the center of Cygnus A, an elliptical galaxy that played a prominent role in Carl Sagan's 1985 science-fiction novel "Contact."

Monday, 15 August 2016

New secrets have been revealed about the monster black hole at the center of Cygnus A, an elliptical galaxy that played a prominent role in Carl Sagan's 1985 science-fiction novel "Contact."

New secrets have been revealed about the monster black hole at the center of Cygnus A, an elliptical galaxy that played a prominent role in Carl Sagan's 1985 science-fiction novel "Contact."

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