DIU and SDA awarded three companies $8.4 million to design spacecraft that can capture and safely deorbit obsolete satellites by 2028.
The technology could also disable or reposition enemy satellites, echoing concerns raised about China's SJ-21 satellite-tugging capability.
The project aims to clear congested low Earth orbit, where thousands of short-lived proliferated constellation satellites pose growing collision risks.
U.S. DoD expands R&D on clearing expired satellites from orbit

