Space is part of the great power competition between the U.S. and China, with both countries racing for dominance.

Instead, it would kick in after the spacecraft reaches orbit, allowing the plasma engine to handle the journey through interplanetary space.

The Invictus hypersonic space plane can fly from London to NYC in one hour, expected to reach Mach 5.0 when it hits the skies ...

Pulsar Fusion, a UK-based space company, is opening its US headquarters in Austin, Texas to develop nuclear fusion powered engines for space travel, with the goal of testing them in space by 2027.

The first two Vulcan test flights last year used a configuration of the rocket with two strap-on boosters to add an extra ...

A bankrupt company’s propulsion system for hypersonic planes is being revived by Invictus, a new European Space Agency (ESA)-backed project aiming to build and fly a hydrogen-powered spaceplane ...

Back-to-back engine failures doomed a privately developed Australian rocket moments after liftoff Tuesday, cutting short a ...