An aircraft running on hydrogen that races through the upper atmosphere at speeds exceeding twelve times the speed of sound might seem like a fantasy reserved exclusively for science fiction. That, ...

Hydrogen powered hypersonic flight is moving from speculative concept to detailed engineering plan, with aerospace startups and research partners sketching out aircraft that could cross continents in ...

Ukraine's new reconnaissance drone uses hydrogen fuel cells to fly 12 hours with a "negligible heat signature." ...

Some disagree, but there are signs that indicate a heightened interest among aviation's major players in hydrogen propulsion as a real, available solution for green commercial flying. As big names ...

Aviation startup ZeroAvia says it’s been granted a “raft” of 45 new patents key to the development of practical large hydrogen aviation engines – and the company says it has 200 more H-related patents ...