How LIGO discovered gravitational waves (with English subtitles) | Gabriela González

(Full English subtitles are available for this talk -- click the CC button in the bottom right of your screen to turn subtitles on.) More than 100 years after Albert Einstein predicted gravitational waves -- ripples in space-time caused by violent cosmic collisions -- LIGO scientists confirmed their existence using large, extremely precise detectors in Louisiana and Washington. Astrophysicist Gabriela González of the LIGO Scientific Collaboration tells us how this incredible, Nobel-winning discovery

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