11 Amazing and Terrible Black Hole Facts

2. The first black hole discovered was named Cygnus X-1, in the 1960s. But in the early days of its discovery, Cygnus X-1 had not been identified as a black hole, for at least a decade. NASA later stated that Cygnus X-1 was about 10 times larger than our Sun (Photo: NASA, ESA, D Coe, J Anderson, R. van der Marel, STScI)

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