Image Courtesy  C. Henze/NASA Ames Research Center    The first gravitational waves were detected on 14th September 2015 in the LIGO detectors in Hanford, Washington and Livingston, Louisiana (both in the U.S.A.) shortly after they came online. Construction of the LIGO was completed in 1999, following which the LIGO was already opera...			
		
		
					
		
		
							
					
		
		
		
					 		
		
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