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LIGO
Laser Interferometer
Gravitational-Wave Observatory
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Operated by Caltech and MIT
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    LIGO Does It Again: A Second Robust Binary Black Hole Coalescence Observed

    News Release • June 15, 2016

    On December 26, 2015, LIGO's detectors caught a second robust signal from two black holes in their final orbits and then their coalescence into a single black hole.

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    LIGO Detects Gravitational Waves

    Detection Portal • February 11, 2016

    On September 14, 2015 at 5:51 a.m. Eastern Daylight Time (09:51 UTC), the twin Laser Interferometer Gravitational-wave Observatory (LIGO) detectors, located in Livingston, Louisiana, and Hanford, Washington, USA both measured ripples in the fabric of spacetime – gravitational waves – arriving at the Earth from a cataclysmic event in the distant universe. The new Advanced LIGO detectors had just been brought into operation for their first observing run when the very clear and strong signal was captured. 

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    Gravitational Waves Detected 100 Years After Einstein's Prediction

    News Release • February 11, 2016

    For the first time, scientists have observed ripples in the fabric of spacetime called gravitational waves, arriving at the earth from a cataclysmic event in the distant universe. This confirms a major prediction of Albert Einstein's 1915 general theory of relativity and opens an unprecedented new window onto the cosmos.

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    What are gravitational waves? Why are we looking for them? How does it affect us? Virtual Tour
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Update from LHO on Hanford DOE Alert

News Release • May 10, 2017

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LIGO Scientific Collaboration Elects David Shoemaker as Spokesperson

News Release • March 30, 2017

LIGO Mourns the Passing of one of its Founders

News Release • March 9, 2017

New movie on LIGO's Mirror suspensions

News Release • February 16, 2017

New LIGO movie premieres

News Release • February 7, 2017

National Academy of Sciences Honors LIGO Researchers

News Release • January 26, 2017

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Contact LIGO Caltech

LIGO Laboratory
MC 100-36
California Institute of Technology
Pasadena, CA 91125

Information: (626) 395-2129

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LIGO is jointly operated by Caltech and MIT
LIGO is supported by the U.S. National Science Foundation

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LIGO Laboratory is member of the LIGO Scientific Collaboration.

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