For more than 60 years, nearly every large rocket used some combination of the same liquid and solid propellants. Refined ...

SEOUL, South Korea (AP) — North Korea said Tuesday it had conducted the final ground test of a solid-fuel rocket engine for a long-range ballistic missile in its latest advancement toward having an ...

Modern spaceflight rests on a deceptively simple idea: a machine that carries its own fuel and oxidizer, then hurls exhaust backward fast enough to push itself forward. The person who first turned ...

BRUNSWICK, Maine — bluShift Aerospace is marketing its proprietary propulsion technology — including a non-toxic, bio-derived ...