Explore the latest advancements in gravitational-wave astronomy through this comprehensive lecture by renowned expert B. S. Sathyaprakash. Delve into the groundbreaking discoveries made by the Laser Interferometer Gravitational-Wave Observatory, including compact binary coalescences of neutron stars and black holes. Examine how these findings have resolved long-standing enigmas while simultaneously raising new questions in gravity, astronomy, and fundamental physics. Learn about the potential of gravitational waves to explore physics beyond the Standard Model and the plans for constructing next-generation observatories like LIGO-India, Einstein Telescope, and Cosmic Explorer. Gain insights into the current state of gravitational wave observations and their implications for our understanding of the universe.