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LIGO
Laser Interferometer
Gravitational-Wave Observatory
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    India Approves Construction of Its Own LIGO

    Feature Story • April 17, 2023

    LIGO-India will greatly improve the localization of sources of gravitational waves

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    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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    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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    What are gravitational waves? Why are we looking for them? LIGO's Impact Public Alerts
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LIGO Ready to Explore Secrets of the Universe

News Release • May 24, 2023

Today, the LIGO-Virgo-KAGRA (LVK) collaboration begins a new observing run with upgraded instruments and other improvements to boost the search for gravitational waves

Headlines

LIGO and its Partners Fast Approaching Next Observing Run

News Release • May 16, 2023

Can Cosmic Collisions Be Predicted Before They Happen?

News Release • March 10, 2023

Latest Update on Start of Next Observing Run (O4)

News Release • January 21, 2023

Winner of the 2022 Award for Excellence in Detector Characterization and Calibration Announced

News Release • November 21, 2022

LIGO Exploration Center opens at Hanford, Washington

News Release • June 8, 2022

Featured Press Releases
  • GW190814; Mystery Object in the Mass Gap
  • GW200105 and GW200115: NSBH binaries
  • 1st BNS GW observation, EM counterparts2017
  • Nobel Prize
  • GW150914 detection portal
Researchers
  • LIGO Scientific Collaboration
  • Citing the LIGO–Virgo–KAGRA 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
Nobel Prize

 

Contact LIGO Caltech

LIGO Laboratory
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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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