Comments on: Supermassive black holes provide ‘hearts and lungs’ that help galaxies live longer https://lifeboat.com/blog/2024/07/supermassive-black-holes-provide-hearts-and-lungs-that-help-galaxies-live-longer Safeguarding Humanity Wed, 24 Jul 2024 07:23:34 +0000 hourly 1 https://wordpress.org/?v=6.6.2