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LIGO
Laser Interferometer
Gravitational-Wave Observatory
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    General_nsbh_merger
    General_nsbh_merger
    General_nsbh_merger

    LIGO-Virgo-KAGRA Finds Elusive Mergers of Black Holes with Neutron Stars

    News Release • June 29, 2021

    LVK scientists capture two NSBH merger events 10 days apart in January 2020.

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    Faceon_frame.000008_watermarked
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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.

  • Dual_bhs_annotated
    Dual_bhs_annotated
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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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    What are gravitational waves? Why are we looking for them? LIGO's Impact Public Alerts
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LIGO-Virgo-KAGRA Webinar to Discuss Observational Results

News Release • March 21, 2022

Thursday 24 March 2022, 10:00AM US Eastern (1400 UTC)

Headlines

LIGO Laboratory's Statement on the War in Ukraine

News Release • March 14, 2022

LIGO-Virgo-Kagra Webinar to Discuss Observational Results

News Release • February 17, 2022

LIGO-Virgo-Kagra Webinar to Discuss Observational Results

News Release • January 20, 2022

Two LIGO-Virgo-KAGRA Webinars to Discuss Further Observational Results

News Release • December 7, 2021

LIGO-Virgo-Kagra Webinar to Discuss New Observational Results

News Release • November 29, 2021

Featured Press Releases
  • GW200105 and GW200115: NSBH binaries
  • GW190814: Mystery object in mass gap
  • 1st BNS GW observation, EM counterparts
  • 2017 Nobel Prize
  • GW150914: 1st direct GW observation
  • GW150914 detection portal
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  • LIGO Scientific Collaboration
  • LIGO Open Science Center
  • Observatory Status
Quick links
  • What are gravitational waves?
  • Why are we looking for them?
  • LIGO's impact
  • Public alerts of candidate events
  • Current and future observing plans
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The LIGO Laboratory is supported by the National Science Foundation and operated jointly by Caltech and MIT. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the National Science Foundation.

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