Astronomers photographed a cosmic event this morning which they believe is the birth of a black hole, SPACE.com has learned.
A faint visible-light flash moments after a high-energy gamma-ray burst likely heralds the merger of two dense neutron stars to create a relatively low-mass black hole, said Neil Gehrels of NASA’s Goddard Space Flight Center. It is the first time an optical counterpart to a very short-duration gamma-ray burst has ever been detected.
Update: Sean Carroll has more details.