... Tonight's Sky . ... Behemoth black hole found in an unlikely place . ... NuSTAR reveals flare from Milky Way's black hole . ... NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) has captured these first focused views of the supermassive black hole at the heart of our galaxy in high-energy X-ray light. ... NASAт??s newest set of X-ray eyes in the sky, the Nuclear Spectroscopic Telescope Array (NuSTAR), has caught its first look at the giant black hole parked at the center of our galaxy. ...