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

Bothell-based Portal Space Systems has introduced Starburst, an ESPA-class rapid-maneuverability spacecraft, and confirmed ...

The era of stationary spacecraft may soon be over. Portal Space Systems, a company headed by propulsion expert Jeff Thornburg, is looking to help usher in a new renaissance in in-space transportation ...

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 ...

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

Billionaires Richard Branson and Jeff Bezos in July made history with their trips to outer space, offering a glimpse of how the fledgling space tourism industry is advancing. More recently, aerospace ...

Portal Space System's Supernova uses sunlight to power a thermal propulsion system that can allow spacecraft to move rapidly between orbits. Credit: Portal Space Systems PARIS — Portal Space Systems ...