Gravitational Waves ~ Dr. Christopher Berry (University of Glasgow)

A decade has passed since LIGO's first observation of gravitational wave. The source of this first detection was a binary of two black holes spiralling together and merging, the first observation of its kind, but now known to be common. Ee have observed many gravitational-wave signals from black holes and neutron stars. These systems, the remnants of massive stars, are difficult to study otherwise. These unique observations provide new insights into the lives of massive stars, the evolution of the Universe and the nature of gravity itself.