Using their least conservative assumptions, the researchers found that less than 2% of the globular clusters should contain intermediate mass black holes today.

BBC: RELATED BBC SITES

Using their most conservative assumptions, Dr Bockelmann and colleagues found that even if every globular cluster started out with an intermediate mass black hole, only about 30% retained them through successive mergers.

BBC: RELATED BBC SITES

When Farrell and his colleagues discovered HLX-1in 2009, it was the first intermediate-mass black hole known.

MSN: Rare Black Hole Survives Galaxy's Destruction

"The fact that there's a very young cluster of stars indicates that the intermediate-mass black hole may have originated as the central black hole in a very low-mass dwarf galaxy, "Sean Farrell, of the Sydney Institute for Astronomy in Australia, said in a statement.

MSN: Rare Black Hole Survives Galaxy's Destruction

In the 1950s, more food was purchased directly off local farms without intermediate processing, packaging and mass distribution.

FORBES: Foods With The Biggest Price Increases