LIGO Lab | Caltech

Slides

LIGO-India Breaks Ground on New Observatory

News Release • April 23, 2026

New gravitational-wave observatory will become the fifth in the world and is poised to advance research in astrophysics, multi-messenger astronomy, fundamental physics, and more.
Caltech Celebrates 10 Years of Gravitational Wave Astrophysics

News Release • October 24, 2025

Watch recordings of celebratory and commemorative talks by Kip Thorne, Rana Adhikari, and others, held at Caltech on October 10, 2025
Ten Years Later, LIGO is a Black-Hole Hunting Machine

News Release • September 10, 2025

LIGO and its partners celebrate anniversary, announce verification of Stephen Hawking's Black Hole Area Theorem
LIGO-Virgo-KAGRA Detect Most Massive Black Hole Merger to Date

News Release • July 15, 2025

Gravitational waves from massive black holes challenge current astrophysical models
What are gravitational waves? Why are we looking for them? LIGO's Impact Public Alerts

News

Masses_of_dead_stars_ligo_virgo_kagra(6)

GWTC-5.0: Updated LIGO–Virgo–KAGRA Catalog sets new records in precision gravitational wave astronomy

News Release • May 26, 2026

The LIGO–Virgo–KAGRA Collaboration released today a new catalog of gravitational wave events. A total of 161 events, detected between April 2024 and the end of January 2025, have been added to the collection, bringing the total number of gravitational wave signals detected to date to 390. Among the most significant findings are: evidence for the existence of second-generation black holes, the most precise sky localization ever achieved for a gravitational wave source, and the clearest gravitational wave signal ever recorded. A wealth of results that marks the coming of age of gravitational astronomy.

Headlines

Researchers

LIGO Scientific Collaboration
Citing the LIGO–Virgo–KAGRA Collaboration
LIGO Open Science Center
Observatory Status
LIGO Laboratory internal bulletin board (requires access.caltech credentials)

Quick links

LIGO-India Breaks Ground on New Observatory

Caltech Celebrates 10 Years of Gravitational Wave Astrophysics

Ten Years Later, LIGO is a Black-Hole Hunting Machine

LIGO-Virgo-KAGRA Detect Most Massive Black Hole Merger to Date

GWTC-5.0: Updated LIGO–Virgo–KAGRA Catalog sets new records in precision gravitational wave astronomy

New catalog more than doubles the number of gravitational-wave detections made by LIGO, Virgo, and KAGRA observatories

Jane Glanzer wins LIGO Lab 2025 Award for Excellence in Detector Characterization and Calibration

LIGO – Virgo – KAGRA Complete Fourth Observing Run

Pair of Distinct Black Hole Mergers Sheds New Light on Nature of Their Formation and Evolution

Artificial Intelligence Helps Boost LIGO

Contact LIGO Caltech

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