The company said it is building the Arc spacecraft to provide a capability to the US military to deliver as much as 500 pounds (225 kg) of supplies almost anywhere in the world, almost instantaneously ...

Discover the SpaceX Raptor engine—a game-changing propulsion system that’s redefining space travel. With innovative full-flow staged combustion and methane fuel, the Raptor is powerful, efficient, and ...

Portal Space Systems says it has successfully tested its solar thermal propulsion system at operational temperatures inside a vacuum chamber.

All of this went well on the previous Starship test flight August 26, when SpaceX rebounded from four consecutive failures—three in flight and one on the ground. With the next Starship launch, ...

Orbital traffic software firm Kayhan Space released a free online tool Sept. 30 that it says will help researchers and developers visualize massive satellite catalogs, without the sluggish performance ...