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 ...

Space-based solar power, a long-envisioned technology, is gaining momentum as a crucial solution to meet growing energy demands and achieve decarbonization targets. This technology offers significant ...

Ask Starpath CEO Saurav Shroff his thoughts on America’s space priorities and he’ll say we’re “one order of magnitude high on cost and one order of magnitude low on ambition.” Starpath’s answer, at ...

Jeff Thornburg helped turn a government research project into SpaceX’s most powerful rocket engine. Now, he’s trying to do the same thing at his startup Portal Space Systems, which is taking an idea ...

HELSINKI — China has published coordinated papers outlining dual missions to the solar system’s edge, suggesting the long-studied project is nearing formal approval. A lead paper on the design and key ...

Impulse Space Inc. today announced that it has closed a $500 million late-stage investment led by 137 Ventures and BANNER VC. The Series D round brings the company’s outside funding to over $1 billion ...

Max Planck Institute for Extraterrestrial Physics scientists have been able to disentangle the X-ray glow originating in our solar system from similar emission reaching us from deep space, using data ...