1. Northrop Grumman’s wholly owned subsidiary, SpaceLogistics, selected by DARPA as commercial partner for robotic servicing mission;Cox,2020
2. ATV operations: From demo flight to human spaceflight partner;Benarroche,2014
3. Robotic refuelling mission: Demonstrating satellite refuelling technology on board the ISS;Metcalfe,2014
4. ESA invites ideas to open up in-orbit servicing market;European Space Agency,2021
5. UK In-Orbit Servicing Capability;Astroscale,2021