cs. In 1991, he was named the Richard P. Feynman Professor of Theoretical Physics. He retired in 2009. Thorne has coauthored or authored several books, including Black Holes and Time Warps: Einstein's Outrageous Legacy, published in 1994. He served as an executive producer and science adviser for the 2014 film Interstellar. He is a member of the National Academy of Sciences, the American Physical Society, the American Academy of Arts and Sciences, and the American Philosophical Society. On October 11, 2017, Thorne will publish the textbook Modern Classical Physics, coauthored with Roger Blandford. For a full biography, click here.
More information about LIGO's many partners is online here.
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MIT Physicist Rainer Weiss Shares Nobel Prize in Physics
Rainer Weiss ’55, PhD ’62, professor emeritus of physics at MIT, has won the Nobel Prize in physics for 2017. Weiss wins half the prize, sharing the other half of the award with Kip S. Thorne, professor emeritus of theoretical physics at Caltech, and Barry C. Barish, professor emeritus of physics at Caltech.
The Nobel Foundation, in its announcement this morning, cited the physicists "for decisive contributions to the LIGO detector and the observation of gravitational waves.”
“We are immensely proud of Rai Weiss, and we also offer admiring best wishes to his chief collaborators and the entire LIGO team,” says MIT President L. Rafael Reif. “The creativity and rigor of the LIGO experiment constitute a scientific triumph; we are profoundly inspired by the decades of ingenuity, optimism, and perseverance that made it possible. It is especially sweet that Rai Weiss not only served on the MIT faculty for 37 years, but is also an MIT graduate. Today’s announcement reminds us, on a grand scale, of the value and power of fundamental scientific research and why it deserves society’s collective support.”
Listening for a wobble
On Sept. 14, 2015, at approximately 5:51 a.m. EDT, a gravitational wave — a ripple from a distant part of the universe — passed through the Earth, generating an almost imperceptible, fleeting wobble in the world that would have gone completely unnoticed save for two massive, identical instruments, designed to listen for such cosmic distortions.
The Laser Interferometer Gravitational-wave Observatory, or LIGO, consists of two L-shaped interferometers, each 4 kilometers in length, separated by 1,865 miles. On Sept. 14, 2015, scientists picked up a very faint wobble in the instruments and soon confirmed that the interferometers had been infinitesimally stretched — by just one-ten-thousandth the diameter of a proton — and that this miniscule distortion arose from a passing gravitational wave.
The LIGO Scientific Collaboration, with the Caltech-MIT LIGO Laboratory and more than 1,000 scientists at universities and observatories around the world, confirmed the signal as the first direct detection of a gravitational wave by an instrument on Earth. The scientists further decoded the signal to determine that the gravitational wave was the product of a violent collision between two massive black holes 1.3 billion years ago.
The momentous result confirmed the theory of general relativity proposed by Albert Einstein, who almost exactly 100 years earlier had predicted the existence of gravitational waves but assumed that they would be virtually impossible to detect from Earth. Since this first discovery, LIGO has detected three other gravitational wave signals, also generated by pairs of spiraling, colliding black holes; the most announced of a detection came just last week.
“We are incredibly proud of Rai and his colleagues for their vision and courage that led to this great achievement,” says Michael Sipser, the Donner Professor of Mathematics and dean of the School of Science at MIT. “It is a wonderful day for them, for MIT, for risk-taking and boldness, and for all of science.”