Explore the groundbreaking discovery of gravitational waves in this 31-minute lecture by Parameswaran Ajith at the International Centre for Theoretical Sciences. Delve into the significance of this scientific milestone and its impact on our understanding of the universe. Learn about the origins of gravitational waves, the detection methods used, and the new insights gained from this discovery. Understand how this breakthrough opens up a completely new window for observing the cosmos, distinct from traditional electromagnetic wave observations. Gain insights into the contributions of the Indian scientific community to this momentous achievement and the future directions it paves for astrophysical research.