Cosmology, Gravitational Waves And Particles - Proceedings Of The ConferenceIn February 2016, physicists announced the breakthrough discovery of the gravitational waves, which were predicted by Albert Einstein in his century old theory of General Relativity. These gravitational waves were emitted as a result of the collision of two massive black holes that happened about 1. 3 billion years ago. They were discovered at the Laser Interferometer Gravitational Wave Observatory (LIGO) in the United States and thus marked a new