LIGO
LocationUSA (WA/LA)
Year2002
Size4 km arms
OperatorNSF
About LIGO
The Laser Interferometer Gravitational-Wave Observatory. Two detectors 3,002 km apart. First detected gravitational waves in 2015 from merging black holes. Confirmed Einsteins last unverified prediction. Won the 2017 Nobel Prize in Physics. Arms are 4 km long with laser beams.
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