https://lifeboat.com/blog/2023/07/using-a-detector-the-size-of-a-galaxy-astronomers-find-strongest-evidence-yet-for-gravitational-waves-from-supermassive-black-hole-pairs Safeguarding Humanity Fri, 21 Jul 2023 21:27:29 +0000 hourly 1 https://wordpress.org/?v=6.6.2