Comments on: General relativity meant there must be these waves but they werent directly detected until 2015 by the LIGO Observatory https://jeopardyanswers.org/general-relativity-meant-there-must-be-these-waves-but-they-werent-directly-detected-until-2015-by-the-ligo-observatory-2/ Fri, 05 Aug 2022 13:33:12 +0000 hourly 1 https://wordpress.org/?v=6.5.2