http://www.newsweek.com/scientists-spot-rare-black-hole-swallow-star-982857

Since their discovery, the only acknowledged black hole varieties represent two extremes: one could swallow the sun, and the other could swallow an entire galaxy. Scientists have long sought proof of mid-size black holes that could fill the gap, and now, they’re one step closer.

For the first time, a group of researchers captured an intermediate-mass black hole as it swallowed a star with satellite imaging, according to Nature Astronomy. Though several potential black holes of its size have been discovered, scientists believe it’s evidence of many more undiscovered middle-tier black holes laying dormant in the universe.