Hubble telescope may have discovered a rare 'intermediate-sized' black hole

'Intermediate-sized' black holes are particularly difficult to spot but NASA's Hubble Space Telescope may have just found one. Astronomers say that they have gathered the "best evidence yet" for the presence of a rare class of intermediate-sized black holes. What's more, this cosmic object is said to be present in a globular star cluster located 6,000 light-years away from Earth.