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LIGO and Virgo Announce Four New Gravitational-Wave Detections

News Release • December 3, 2018

The National Science Foundation's LIGO (Laser Interferometer Gravitational-Wave Observatory) and the European-based VIRGO gravitational-wave detector have published new results from the first two Observing runs. Four new black hole mergers are newly announced, The LIGO and Virgo collaborations have now confidently detected gravitational waves from a total of 10 stellar-mass binary black hole mergers and one merger of neutron stars, which are the dense, spherical remains of stellar explosions.
LIGO and Virgo make first detection of gravitational waves produced by colliding neutron stars

Press release • October 16, 2017

For the first time, scientists have directly detected gravitational waves — ripples in space and time — in addition to light from the spectacular collision of two neutron stars. This marks the first time that a cosmic event has been viewed in both gravitational waves and light.
Nobel Prize awarded to LIGO Founders

News Release • October 3, 2017

LIGO co-founders Barry C. Barish, Kip S. Thorne, and Rainer Weiss win the 2017 Nobel Prize in Physics.
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.
What are gravitational waves? Why are we looking for them? How does it affect us? Virtual Tour

News

First Public Gravitational Wave Alert Issued!

News Release • April 11, 2019

LIGO and Virgo have sent out their first-ever “public alert”, informing the world of a possible gravitational wave detection. The candidate event occurred on April 8, 2019.

Headlines

LIGO and Virgo Resume Search for Ripples in Space and Time

News Release • March 26, 2019

LIGO and Virgo to Begin Third Observing Run on April 1, 2019

News Release • March 20, 2019

The O2 Data Set Is Now Available

News Release • February 27, 2019

LIGO Receives New Funding to Search for More Extreme Cosmic Events

News Release • February 14, 2019

Winners of the 2018 Award for Excellence in Detector Characterization and Calibration Are Announced

News Release • November 20, 2018

Contact LIGO Caltech

LIGO Laboratory
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California Institute of Technology
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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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