35 new events detected by LIGO and Virgo in their latest observation period bring to 90 the gravitational waves detected so far. These events are spacetime quakes generated by the mergers of either two black holes or neutron stars, or black hole-neutron star pairs. The dataset, published in the so-called third Catalog Paper, outlines the … Continue reading 90 new spacetime quakes detected by Virgo and LIGO