LIGO Mass Gap

LIGO Mass Gap

Artist impression of mysterious astronomical object

Artist impression of a mysterious astrophysical object just prior to merging with a black hole nine times its size. The event created gravitational waves detected on earth and now astronomers are puzzling over whether they have discovered the heaviest neutron star or the lightest black hole ever observed.

IMAGE: Carl Knox, ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav) at Swinburne University of Technology