Discovery of gravitational waves: a new chapter in black hole studies

With the discovery of gravitational waves, a new space information channel has become available to scientists, and a new field of science, nonlinear dynamics of curved space–time (geometrodynamics for short) has been given an observational foundation. The observation of gravitational waves is especially interesting for understanding the nature of black holes. The observation of the ring-down stage of a binary black hole merger can provide a profound opportunity to obtain proof of the presence of an event horizon for a newly formed black hole. The discovery of gravitational waves opens up new possibilities for the massive discovery and investigation of new black holes in highly evolved binaries.