Symphony of Spacetime

Quasinormal modes — the characteristic “ringdown” oscillations of black holes — were first discovered by Prof. C. V. Vishveshwara in the early 1970s and later observed in the landmark 2015 LIGO detection of gravitational waves. Today, they form the foundation of black hole spectroscopy, enabling precision tests of general relativity and sensitive probes of new physics. With next-generation gravitational-wave observatories on the horizon, this conference brings together the community to review recent advances, explore future directions, and honor Vishveshwara’s pioneering legacy.