Comments on: London-New York in 45 mins: New hypersonic jet could fly 7x speed of sound https://lifeboat.com/blog/2025/05/london-new-york-in-45-mins-new-hypersonic-jet-could-fly-7x-speed-of-sound Safeguarding Humanity Sun, 25 May 2025 02:11:00 +0000 hourly 1 https://wordpress.org/?v=6.8.1