Astronomers discover a nearby 'hidden' black hole
 

Astronomers compared data (and notes, we'd like to imagine) on a "peculiar" source of radio waves, concluding that what was once thought to be a distant galaxy is actually a nearby binary star system, made up of a low-mass star and a black hole. It t...

https://www.engadget.com/2016/06/28/secret-black-hole/