China’s secretive space plane has returned to Earth. Its mission? Unknown

This capability to maneuver close to another object could be used for inspection of space assets, or potentially the clearing of orbits of space debris. But they could be used for nefarious purposes, including interception of signals or the physical damaging of other spacecraft,” said Juliana Suess, a research fellow for space security at London-based defense think tank the Royal United Services Institute, or RUSI.