For more than a decade, scientists have been able to detect gravitational waves— ripples in space-time that help us understand the universe's evolution and the most violent events in the cosmos—using the US National Science Foundation's Laser Interferometer Gravitational-wave Observatory (LIGO) , managed by Caltech and MIT. Now, a new ear on the cosmos will be joining a global network of gravitational-wave detectors that also includes observatories in Italy ( Virgo ) and Japan ( KAGRA ). LIGO-India broke ground on April 23, 2026, at Aundha in the Hingoli district of Maharashtra, located in the western peninsular region of India. "This has been 20 years in the making, and we are finally making it happen," says Rana Adhikari, professor of physics at Caltech and a longtime member of the LIGO collaboration.…