As reported in this CNN article, for the first time, astronomers have detected tones like the ring of a bell from a newly formed black hole.
"This was a very surprising result. The conventional wisdom was that by the time the remnant black hole had settled down so that any tones could be detected, the overtones would have decayed away almost completely," said Saul Teukolsky, study co-author and Robinson Professor of Theoretical Astrophysics at Caltech. "Instead, it turns out that the overtones are detectable before the main tone becomes visible." Professor Teukolsky is also the Hans A. Bethe Professor of Physics at Cornell University.
Read the full CNN story here.