LIGO, Virgo and KAGRA complete the richest observation run to date

Today the international LIGO-Virgo-KAGRA Collaboration announces the completion of the fourth observation campaign (called O4) of the international network of gravitational wave detectors. Launched in May 2023, the campaign ends today after a period of coordinated...

LIGO, Virgo and KAGRA observed “second generation” black holes for the first time

A pair of very special black hole mergers, detected just one month apart in late 2024, is improving how scientists understand the nature and evolution of the most violent deep-space collisions in our universe. Some features of these mergers point toward the...

Previous EGO-Virgo News

Ten years of gravitational waves

Ten years of gravitational waves

On September 14th 2015, ten years ago, a signal arrived on Earth that was generated by a pair of black holes. After spiralling around each other at impressive speeds, they had merged, releasing an...

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Goodbye Rai Weiss

Goodbye Rai Weiss

We are deeply saddened to hear about the passing of Rainer Weiss, one of the fathers of gravitational wave research, founder of the Laser Interferometer Gravitational-Wave Observatory (LIGO) and...

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