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

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 ...

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 ...

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The id ...

GeekWire chronicles the Pacific Northwest startup scene. Sign up for our weekly startup newsletter, and check out the GeekWire funding tracker and VC directory. by Alan Boyle on Apr 3, 2025 at 6:00 am ...

Portal Space Systems tests 3D printed heat exchanger thruster - validating the core technology powering Supernova.

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 ...

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 ...