COSMOLOGY, GRAVITATIONAL WAVES AND PARTICLES

The groundbreaking discovery of gravitational waves in February 2016, resulting from the collision of two black holes 1.3 billion years ago, marked a significant milestone in physics, affirming Einstein's century-old predictions. Detected by the Laser Interferometer Gravitational-Wave Observatory (LIGO), this event raises critical questions about integrating gravitational interactions into the Standard Theory of particle physics, which currently explains electroweak and strong interactions in the universe.