The Laser Interferometer Gravitational-Wave Observatory (short LIGO) is a large interferometer used for the detection of gravitational waves. Use this tag for questions about this specific installation; for questions more generally about the properties of gravitational waves or gravitation, use [gravitational-waves] and/or [general-relativity]

The Laser Interferometer Gravitational-Wave Observatory (short LIGO) is an installation with two large interferometers in North America used for the detection of gravitational waves. It works closely together with the Virgo interferometer located in Italy.