OXFORD, Mississippi, Dec. 3 -- The University of Mississippi issued the following news: * * * Research Uncovers the Telltale Tail of Black Hole Collisions UM, Perimeter Institute researchers get first glimpse at black hole 'tails' * When black holes collide, the impact radiates into space like the sound of a bell in the form of gravitational waves. But after the waves, there comes a second reverberation - a murmur that physicists have theorized but never observed. An international collabor  more