Why it matters: A Y Combinator-backed startup has developed a groundbreaking jet engine that could make supersonic flight as affordable as current commercial aviation. As Freethink reports, this isn’t ...

In May 2025, Delhi NCR-based Green Aero also successfully demonstrated its first hydrogen-powered jet engine named The Blue Dragon, but commercial deployment of such engines is still a long way away ...

By Michael Kahn, Supantha Mukherjee and Tom Balmforth PRAGUE/STOCKHOLM/LONDON, April 7 (Reuters) - Specialist mini jet engine makers across Europe are ramping up production and investment to head off ...