Astrobotic completed a successful series of hot-fire tests of its rotating detonation rocket engine prototype, marking a key milestone for the experimental propulsion technology.

Rotating detonation rocket engines work differently than traditional rockets to maximize thrust while using less fuel—an advantage that could help spacecraft explore farther in the solar system ...

A prototype ion engine that uses lithium vapor as a propellant has aced its first tests, achieving 25 times more power than ...

Two Chakram engine prototypes accumulated more than 470 seconds of total run time.

Ursa Major Technologies has completed the first hot-fire tests of its Hadley H13 liquid rocket engine, a milestone the company says could support reusable hypersonic test vehicles and smaller launch ...

UK space propulsion company Pulsar Fusion has conducted the first test of a prototype exhaust system for a nuclear fusion rocket engine that could dramatically cut transit times for missions to Mars ...

These hands-on projects are a highly engaging way for high school students to explore aerodynamics and physics.

CEO Jason Kim says the company's Alpha model will debut its Block II setup as soon as this summer.

A reusable hypersonic test vehicle built by Stratolaunch flew faster than Mach 5 off the California coast and then landed ...