Today the LIGO and Virgo collaboration announced the first detection of gravitational waves from binary neutron star mergers (GW170817). This was exciting already, but even more exciting was the announcement of the detection of several electromagnetic counterparts, from gamma to radio, and in particular the clear association with a short gamma-ray burst. We finally know what causes short GRBs!
Today Giovanni Prodi and his collaborators gave an excellent public outreach talk on the discovery of gravitational waves and their important contribution to this amazing result. The video below is in Italian and was filmed at the University of Trento.