LIGO Lab | Caltech

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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.
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.
What are gravitational waves? Why are we looking for them? How does it affect us? Virtual Tour

News

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.”

Headlines

LIGO and Virgo to Receive IEEE Milestone Plaques

News Release • January 22, 2021

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

News Release • November 23, 2020

LIGO, Virgo and Kagra Observing Run Plans

News Release • November 17, 2020

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

News Release • November 16, 2020

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

News Release • November 10, 2020

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

LIGO-Virgo Finds Mystery Object in "Mass Gap"