Robotic Servicing of Geosynchronous Satellites program
DARPA's Robotic Servicing of Geosynchronous Satellites (RSGS) program leverages commercial space technology to inspect and repair aging or broken satellites in the geosynchronous Earth orbit (GEO), about 35,786 kilometers (22,236 miles) from Earth.The RSGS program was a public private partnership between DARPA and a commercial partner. The robotic payload was designed and integrated by the Naval Center for Space Technology of the U.S. Naval Research Laboratory.
Source: Wikipedia — Robotic Servicing of Geosynchronous Satellites program (CC BY-SA 4.0)