Jun 24, 2023 #2 Hornbein Gold Member Messages 4,100 Reaction score 3,271 I bet it's the scheduled Nanograv news conference. It has to do with signals from collisions of supermassive black holes, which can't be detected by LIGO. https://www.physicsforums.com/threads/nanograv-results-on-thursday-june-29.1053481/ This wouldn't really have anything to do with the "foundations of physics," but you can't expect precision from tweets.
I bet it's the scheduled Nanograv news conference. It has to do with signals from collisions of supermassive black holes, which can't be detected by LIGO. https://www.physicsforums.com/threads/nanograv-results-on-thursday-june-29.1053481/ This wouldn't really have anything to do with the "foundations of physics," but you can't expect precision from tweets.