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自20世纪50年代以来，人类就把活动的半径从地球延伸到了太空，各种各样的人造机器被送上了太空，太空中人类“到此一游”的见证越来越多。它们显示了人类科学的辉煌，人类智慧的伟大。然而，随着人造机器越来越频繁地进入太空，环境污染的阴影也开始在太空扩展。垃圾使卫星化
Since the 1950s, humans have extended the radius of their activities from Earth to space, and various types of man-made machines have been sent to space. The witnesses of humans in space have gone further and further. They show the glory of human science and the greatness of human wisdom. However, as man-made machines enter space more and more frequently, the shadow of environmental pollution begins to expand in space. Garbage makes satellites