... Behemoth black hole found in an unlikely place . ... NuSTAR catches black holes in galaxy web . ... In addition, NuSTAR has begun black hole searches in the inner region of the Milky Way Galaxy and in distant galaxies in the universe. ... Previous X-ray observations of the galaxy from NASAт??s Chandra X-ray Observatory revealed the presence of two blinding black holes called ultraluminous X-ray sources (ULXs). ... Only registered members of Astronomy.com are allowed to comment on this article. ...