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

BOTHELL, Wash. — Washington resident Jeff Thornburg has an impressive and lengthy resume. He's worked for NASA, SpaceX, Amazon's Project Kuiper, and Paul Allen. All of that experience led him to where ...

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 ...

VIPs cut the ribbon at Portal Space Systems’ HQ in Bothell, Wash. From left: U.S. Rep. Suzan DelBene; Portal co-founders Prashaanth Ravindran, Jeff Thornburg and Ian Vorbach; and Bothell Mayor Mason ...

BOTHELL, Wash. — Bothell-area resident Jeff Thornburg saw an opportunity to develop a new type of spacecraft. One, he says is more maneuverable, more capable, and more rapid. "Our Supernova Spacecraft ...

SAN JOSE, Calif.--(BUSINESS WIRE)--Momentus Inc. (NASDAQ: MNTS) ("Momentus" or the "Company"), a leading U.S. commercial space firm specializing in satellite solutions, in-space transportation, and ...

Portal Space Systems and local officials celebrated the opening of Portal's Bothell facility with a ribbon-cutting Monday. From left: U.S. Rep. Suzan DelBene, Portal co-founder Prashaanth Ravindran, ...

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 WASHINGTON — Portal Space ...

The move will allow Portal to eventually triple its workforce as it moves toward producing one spacecraft per month by 2027. EVERETT — Space start-up Portal Space Systems is building a ...