Recently, the collision of two neutron stars was discovered by astronomers using both telescopes and the LIGO gravitational-wave observatory. This is a new way to do astronomy — simultaneously studying the Cosmos using both light and gravity. Professors Vicky Kalogera, Shane Larson, Raffaella Margutti and Wen-fai Fong will describe their roles and experiences in the making of the ground-breaking discovery. Details here.