The Gravitational Wave Astronomy Era: From the first detections on Earth to space observatories

2016 has been so far a revolutionary year in science. The direct detections of gravitational waves from the merger of black holes has put an end to the pre-Gravitational Wave Era. Thanks to the features of these waves, we can probe regimes where photons can barely escape, and achieve cosmological distances.   In this talk I will discuss the potential of Gravitational Wave Astronomy thanks to detections from both the ground, and in particular from future space observatories, such as the planned LISA mission. I will focus on the capture of small compact objects by supermassive black holes. We these captures we will test gravity in the strong regime, because they allow us to do relativistic geodesy - They are unique event horizon probes.