Comments on: Astronomers Just Calculated The Spin Speed of a Supermassive Black Hole https://lifeboat.com/blog/2024/05/astronomers-just-calculated-the-spin-speed-of-a-supermassive-black-hole Safeguarding Humanity Thu, 23 May 2024 14:26:23 +0000 hourly 1 https://wordpress.org/?v=6.6.1