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Events on Thursday 11 February 2016 2
2016Gravitational waves detectedA hundred years after the predictionLIGO announced on 11 February 2016 that it had recorded the collision of two black holes 1.3 billion light years away, detected the previous September. The signal matched general relativity's waveform precisely. Einstein had assumed the effect was too small ever to measure.
2016Gravitational waves detectedEinstein's 1916 prediction confirmedScientists at LIGO announced the first detection of gravitational waves on February 11, 2016, confirming Einstein's century-old prediction. The waves were produced by two merging black holes.