https://techcrunch.com/2024/04/30/portal-space-systems-unveils-supernova-an-ultra-mobile-spacecraft/

The era of stationary spacecraft may soon be over.

Portal Space Systems, a company headed by propulsion expert Jeff Thornberg, is looking to help usher in a new renaissance in in-space transportation with its ultra-mobile Supernova satellite bus. Think of it as maneuverability-as-a-service — tech that could propel transfers from low Earth orbit to geostationary orbit in a matter of hours.