Portal Space Systems, a Bothell-based startup, aims to harness the power of the sun to propel spacecraft, making it easier to ...

Portal Space Systems says that a rapid-maneuverability space vehicle called Starburst will leverage technologies it's already ...

The unarmed Minuteman III intercontinental ballistic missile (ICBM) launched from Vandenberg Space Force Base in California.

Portal’s heat exchanger thruster, known as Flare, fires up during a test in a vacuum chamber. (Portal Space Systems Photo) Bothell, Wash.-based Portal Space Systems says it has successfully tested its ...

The U.S. Space Force is preparing a 15-year force design plan that may include "dynamic space operations" (DSO) for satellite ...

The U. S. Space Force is close to wielding new weapons designed to jam Chinese and Russian satellites in orbit, according to ...

Less than 10% of Americans know the Space Force exists. It’s a problem the Colorado Springs-based Space Force Association is ...

The U.S. Space Force is hoping to get its own permanent opposition force for training, this time in orbit. Specifically, the service is looking at sending up satellites into space to serve as ...

The Space Force appears to be embracing its inner Johnny Rico with a possible name change of one of its commands. The service is considering changing Space Operations Command’s name to Combat Forces ...

Bothell, Wash.-based Portal Space Systems says it has successfully tested its solar thermal propulsion system at operational temperatures inside a vacuum chamber, marking a first for the commercial ...