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LIGO-Virgo-KAGRA Webinar on Recent Search for Lensing Signatures in Gravitational-wave Observations

News Release • May 24, 2021

Watch a video of the webinar.

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O3a Bulk Strain Data Release

News Release • April 17, 2021

LIGO/Virgo release latest data to the public

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LIGO-Virgo-KAGRA Webinar to Discuss New Results on the Gravitational-wave Background

News Release • February 2, 2021

An online LVK webinar entitled “Constraining astrophysical and cosmological gravitational-wave backgrounds with Advanced LIGO and Virgo's 3rd observing run.”

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LIGO and Virgo to Receive IEEE Milestone Plaques

News Release • January 22, 2021

IEEE to bestow the Milestone awards to the gravitational-wave observatories of LIGO and Virgo.

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Winner of the 2020 Award for Excellence in Detector Characterization and Calibration Announced

News Release • November 23, 2020

Siddharth Soni (Louisiana State University) is the winner of the 2020 Award for Excellence in Detector Characterization and Calibration.

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LIGO, Virgo and Kagra Observing Run Plans

News Release • November 17, 2020

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3rd LIGO/Virgo Webinar on the Latest Results from the First-half of the 3rd Observing Run

News Release • November 16, 2020

3rd LIGO/Virgo webinar on the latest results from the 1st half of the 3rd Observing Run

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2nd LIGO/Virgo Webinar on the Latest Results from the First-half of the 3rd Observing Run

News Release • November 10, 2020

2nd LIGO/Virgo webinar on the latest results from the 1st half of the 3rd Observing Run

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1st LIGO/Virgo Webinar on the Latest Results from the First-half of the 3rd Observing Run

News Release • November 2, 2020

LIGO-Virgo webinar (1 of 3) to discuss the GWTC-2 results

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LIGO and Virgo Announce New Detections in Updated Catalog

News Release • October 28, 2020

LIGO/Virgo release second Gravitational Wave Transient Catalog (GWTC-2)

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LIGO Hanford Breaks Ground for New Exploration Center

News Release • October 23, 2020

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LIGO Celebrates 5th Anniversary of First Gravitational Wave Detection

News Release • September 14, 2020

Staff remember that historic day, and reflect on what's happened since then.

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Syd Meshkov, 1927-2020

News Release • September 11, 2020

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A “bang” in LIGO and Virgo detectors signals most massive gravitational-wave source yet

News Release • September 2, 2020

GW190521, a binary black hole merger likely produced gravitational waves equal to the energy of eight suns.

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Webinar on GW190521 Results from the LIGO-Virgo-Kagra Collaboration

News Release • September 1, 2020

On September 3rd, in a live webinar, the LIGO-Virgo-Kagra Collaboration will discuss the GW190521 results.

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LIGO Observatories Humming with Upgrade Activities

News Release • August 24, 2020

Some LIGO staff and engineers have returned to the sites to begin planned upgrades.

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Quantum fluctuations can jiggle objects on the human scale

Feature Story • July 1, 2020

For the first time, a team led by researchers at LIGO MIT has measured the effects of quantum fluctuations on an object at the human scale.

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LIGO-Virgo Finds Mystery Object in "Mass Gap"

News Release • June 23, 2020

LIGO and Virgo report the observation of a merger involving a black hole of 23 solar masses and a compact object of 2.6 solar masses, detected during LIGO’s and Virgo’s 3rd observing run on August 14, 2019. The merger resulted in a final black hole of about 25 solar masses, located about 800 million light-years from Earth.

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LIGO shares Caltech and MIT statements responding to the Death of George Floyd

News Release • June 5, 2020

LIGO Laboratory which is managed by Caltech and MIT, would like to share their statements regarding recent events:

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GW190412: The Merger of Two Black Holes with Unequal Masses

News Release • April 20, 2020

On April 12, 2019, LIGO and Virgo observed gravitational waves produced by the inspiral and merger of two black holes of unequal masses, an event dubbed GW190412.

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LIGO Suspends Third Observing Run (O3)

News Release • March 26, 2020

LIGO suspends third observing run early in response to COVID-19

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LIGO Laboratory’s Response to COVID-19

News Release • March 19, 2020

LIGO Laboratory prides itself on being part of a worldwide collection of scientists. At the same time, each detector is also a part of its local community, and we pride ourselves on being good community partners as well. Right now, both local and worldwide communities are being significantly challenged by COVID-19 (the novel coronavirus).

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KAGRA Begins Initial Observations

News Release • March 3, 2020

KAGRA gravitational wave detector in Japan began initial GW observations on February 25, 2020

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LIGO-Virgo Network Catches Another Neutron Star Collision

News Release • January 6, 2020

LIGO and VIrgo detect another binary neutron star collision, dubbed GW190425.

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Update on Quantum Squeezing Device

News Release • December 11, 2019

Update on LIGO and Virgo vacuum squeezing upgrade