The US Defense Advanced Research Projects Agency (DARPA) and its industry partners are preparing to launch a robotic satellite servicing mission designed to demonstrate on-orbit maintenance and upgrade capabilities for spacecraft operating in geosynchronous orbit. The mission, known as Robotic Servicing of Geosynchronous Satellites (RSGS), is scheduled for launch in summer 2026 and ranks among the most ambitious attempts yet to commercialize robotic satellite servicing.
A dexterous robot for high orbit
At the center of the mission is the Mission Robotic Vehicle (MRV), a spacecraft equipped with a highly dexterous robotic servicing system capable of performing satellite inspections, repairs, relocation, upgrades and anomaly resolution while in orbit. The program targets geosynchronous orbit (GEO), where hundreds of commercial, military and government satellites operate roughly 36,000 kilometers above Earth.
A government-commercial partnership
DARPA is leading development of the robotic servicing technologies with the Naval Research Laboratory and NASA, while SpaceLogistics, a subsidiary of Northrop Grumman, is responsible for system integration. During a recent program update, RSGS Program Manager James Shoemaker emphasized combining government-developed robotics with existing commercial spacecraft infrastructure.
"The RSGS program is a government-private partnership for the next wave of satellite servicing," Shoemaker said. "This upcoming demonstration is about proving the commercial viability of on-orbit servicing in GEO, creating a capability that will be available for both commercial industry and the US government."
Moving away from disposable satellites
The long-term goal of the program is to shift the satellite industry away from treating spacecraft as disposable assets once fuel runs low or hardware fails. Instead, robotic servicing systems could allow satellites to be upgraded, repositioned, repaired or operationally extended while remaining in orbit. Supporters argue the approach could improve the resilience and sustainability of space infrastructure while reducing the cost of replacing satellites.
Toward an in-space economy
The mission reflects growing interest across the aerospace industry in autonomous robotic systems that can operate in complex orbital environments with limited or no human intervention. If successful, RSGS could help establish a commercial market for robotic servicing missions while opening the door to future in-space assembly, manufacturing and infrastructure maintenance. The effort echoes wider momentum in space robotics, from commercial satellite launches to crewed missions such as China's Shenzhou-23 flight to Tiangong and heavy-lift testing like SpaceX's latest Starship test flight.
Reporting based on coverage from Robotics & Automation News and DARPA.