https://simpleflying.com/worlds-1st-hypersonic-jet-hydrogen-fuel/
12 Times The Speed Of Sound? A Look At The World’s 1st Hypersonic Jet Powered By Hydrogen Fuel
Hydrogen-fuelled jets at Mach 12? Australia’s Hypersonix is pioneering hypersonic flight with clean propulsion, changing aviation’s speed frontier
timesspeedsoundlook
https://interestingengineering.com/military/world-first-hydrogen-powered-hypersonic-jet
World’s first hydrogen hypersonic jet could fly 12x the speed of sound
Nov 3, 2025 - Australia’s Hypersonix Launch Systems has secured $46 million in funding from a Series A round to develop a hydrogen-fueled hypersonic jet.
hypersonic jetcould flyfirst