We explore the history of the discovery of gravitational waves with Rai Weiss, including the relevance to special and general relativity, pulsars, supernovae, merging and binary black holes, space and time, neutron star collisions, dark matter, cosmic background radiation, gamma ray bursts, and even the viscosity of neutrinos. We also discuss really small numbers, the origin of the NSF and NASA, the LIGO scientific collaboration, the politics of science, and what all this has to do with Albert Einstein. Rai received his PhD at MIT in 1962, and taught at Tufts University and Princeton before returning to MIT. Among Rai's many distinguished awards is the 2017 Nobel Prize in Physics, which he received along with Kip Thorne and Barry Barish "for decisive contributions to the LIGO detector and the observation of gravitational waves."

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