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, ...

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

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 ...