A MOMENT IN HISTORY
Gravitational waves are detected for the first time
2016 CE · United States, North America · Science
The first direct observation of gravitational waves was made on 14 September 2015 and was announced by the LIGO and Virgo collaborations on 11 February 2016. Previously, gravitational waves had been inferred only indirectly, via their effect on the timing of pulsars in binary star systems.
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