US-based COMSPOC and Swiss firm s2a systems tracked close proximity maneuvers between Shijian-21 and Shijian-25 from June to early July. ============================================================= China has reportedly performed a historic refueling mission in Earth’s orbit. During the mission, two Chinese satellites appear to have docked in geostationary orbit, a report from the South China Morning Post reveals. One then refueled the other, marking an impressive milestone that no other nation has achieved. While China’s space administration has not officially confirmed the operation was a success, a US space observation company observed the two satellites coming together. Refueling technologies are a key evolution for...