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Professor Emeritus Rainer Weiss, influential physicist who forged new paths to understanding the universe, dies at 92

Professor Emeritus Rainer Weiss, influential physicist who forged new paths to understanding the universe, dies at 92
science8/26/2025

MIT Professor Emeritus Rainer Weiss, a renowned experimental physicist and Nobel laureate whose groundbreaking work on the Laser Interferometer Gravitational-Wave Observatory (LIGO) confirmed a longstanding mystery about the nature of the universe, has died at 92.

“Rai held a singular position in science: He was the creator of two fields — measurements of the cosmic microwave background and of gravitational waves. His students have gone on to lead both fields and carried Rai’s rigor and decency to both. He not... [7623 chars]