ScientistsannouncedonThursday,February11,2016,atapressc...
問題詳情:ScientistsannouncedonThursday,February11,2016,atapressconferenceinWashington,D.Cthatthemorethanhalf-centurysearchforgravitationalwavesfinallysucceeded.Theyconfirmedthattheyhaddetectedgravitati...