China’s space agency has just announced another major success. For the first time, the lunar probe „Chang’e-6“ was able to retrieve rock samples from the far side of the moon. The news went around the world. In contrast, another mysterious Chinese spacecraft, which has been orbiting Earth for around 200 days, has received almost no attention. Defense experts, however, are alarmed: The space glider is capable of gathering data from the satellites of military rivals. Or to disable them outright.