In August, scientists at Georgia Tech discovered yet another gravitational wave. This one was 130 million years old, and for the first time, it came with a flash of light as well as a chirping sound. The wave is thought to be a result of a collision between two neutron stars, which blasted tons of gold into space. We talk about the discovery with Laura Cadonati, Professor of Physics at Georgia Tech and Deputy Spokesperson for the LIGO Scientific Collaboration. James Clark, a postdoctoral researcher at Georgia Tech, also joins us.