LIGO

The Laser Interferometer Gravitational-Wave Observatory is a large-scale physics experiment and observatory designed to detect cosmic gravitational waves and to develop gravitational-wave observations as an astronomical tool. Two large observatories were built in the United States with the aim of detecting gravitational waves by laser interferometry. These observatories use mirrors spaced four kilometers apart which are capable of detecting a change of less than one ten-thousandth the charge diameter of a proton. The initial LIGO observatories were funded by the United States National Science Foundation and were conceived, built and are operated by Caltech and MIT. They collected data from 2002 to 2010 but no gravitational waves were detected.

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Gravitational shockwave: LIGO catches a 225-solar-mass black-hole smash-up

LIGO has spotted the most massive black hole collision ever detected

LIGO-Virgo-KAGRA detect most massive black hole merger to date - EurekAlert!

(Science.org) New NSF proposal would shut down LIGO, TMT, postdoc fellowships, and others

LIGO Has Seen Several Intermediate Mass Black Hole Mergers

New diagnostic tool will help LIGO hunt gravitational waves

LIGO Has Detected Unusual Black Holes Merging, But they Probably Don’t Explain Dark Matter

LIGO Has Detected Unusual Black Holes Merging, But they Probably Don't Explain Dark Matter

An object from an inexplicable mass gap between neutron stars and light black holes has been discovered – it was detected by LIGO detectors

LIGO goes to space: ESA to proceed with LISA gravitational wave detector

LIGO gravitational wave detector breaks 'quantum limit' to find deep universe black hole collisions

How quantum ‘squeezing’ will help LIGO detect more gravitational waves

LIGO Has Surpassed The Quantum Limit. We Can Explain.

LIGO surpasses the quantum limit

LIGO project begins new gravitational wave hunt

Gravitational-wave detector LIGO is back — and can now spot more colliding black holes than ever