Kip Thorne

Kip Stephen Thorne was born in Logan, Utah in 1940 and studied at Caltech and then Princeton, where he completed a PhD under John Archibald Wheeler — the physicist who coined the term 'black hole' and championed general relativity through its mid-century revival. Thorne returned to Caltech as a young professor and built one of the world's leading groups in relativistic astrophysics, training a generation of theorists in the mathematics of curved spacetime.

Thorne's theoretical work spanned the physics of gravitational radiation, the structure and dynamics of black holes, and the waveforms that compact-object mergers would produce. Crucially, he and his students worked out what the signals should look like — the chirp of an inspiral, the ringdown of a newly formed black hole — so that, when a detector was finally built, there would be theoretical templates to match the data against. Without those templates, a signal buried in noise would be unrecognizable.

In the 1980s Thorne became the theoretical anchor of LIGO, partnering with Rainer Weiss and Ronald Drever and, later, Barry Barish. He argued forcefully and publicly that interferometric detection was feasible and worth the enormous investment, betting his scientific reputation on it. He also had a flair for the public imagination, famously wagering with Stephen Hawking over black-hole and cosmological questions, and consulting on the physics of the film Interstellar.

Thorne shared the 2017 Nobel Prize in Physics with Weiss and Barish for the detection of gravitational waves. His textbook contributions — above all the monumental Gravitation, co-authored with Charles Misner and Wheeler — trained much of the modern relativity community. He has continued to write and teach, bridging rigorous theory and a wide public audience.