Scientists have recently uncovered portal-like structures in space that could revolutionize our understanding of the universe. These findings, rooted in advanced astronomical observations and ...

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 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 ...

Portal Space Systems, a 4-year-old Bothell startup, wants to make it easier for spacecraft to move between orbits. To make that happen, it had to dust off decades-old research on an unorthodox ...

Portal Space Systems plans to launch its first Starburst spacecraft in late 2026. Credit: Portal Space Systems WASHINGTON — Portal Space Systems says it will develop a highly maneuverable satellite ...

Einstein's theory of general relativity views time similarly to width, height, and length. As such, both time and space can be curved by gravity. This effectively means that time is slower the closer ...