To date, the collaboration has detected dozens of merger events since its first Nobel Prize-winning discovery. Early detected mergers involved either two black holes or two neutron stars. In 2021, LIGO/Virgo/KAGRA confirmed the detection of two separate "mixed" mergers between black holes and neutron stars.

Astrophysicists have analyzed two merging black holes; the team's best models suggest that at least one, if not both, of the black holes shouldn't exist.

A U.S. gravitational wave detector spotted a collision between fast-spinning “forbidden” black holes that challenge physics models