LIGO-Virgo Discoveries Over Time

This movie shows the increasing sample of gravitational wave sources, starting before LIGO-Virgo went online (with only electromagnetic, EM, sources) and then moving through the three observing runs of data that are now available (O1, O2, and O3a). Watch as the sample of merging black holes and neutron stars has dramatically increased over the past few years, with the results of LIGO-Virgo.

Credit: Visualization: LIGO-Virgo / Frank Elavsky, Aaron Geller / Northwestern