Caltech professor Kip Thorne addresses the audience at a press conference for the Nobel Prize in Physics on October 3, 2017 in Pasadena, California. Three US scientists, Caltech professors Kip Thorne (R), Barry Barrish (L) and Rainer Weiss of MIT who was not present, who envisioned and built twin machines that discovered gravitational waves predicted by Albert Einstein more than a century ago, won the Nobel Prize in physics. / AFP PHOTO / FREDERIC J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
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