SPACE - Birth of black hole kills the radio star

Astronomers have discovered a new population of exploding stars that "switch off" their radio transmissions before collapsing into a Black Hole. These exploding stars use all of their energy to emit one last strong beam of highly energetic radiation -- known as a gamma-ray burst -- before they die ...

http://www.sciencedaily.com/releases/2013/12/131220114041.ht