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20世纪中叶,航天技术兴起,人类继在地球二维平面探索之后,开启了对地球的三维立体探索,并把目光投向了浩瀚的宇宙。宇宙是广袤的,但到目前为止,科学家们发现,在广袤的宇宙当中,适宜人类居住的星球只有地球。地球是我们赖以生存的唯一家园,工业化、城市化等等无节制地开发对我们脆弱的家园造成了不小的损害,森林在不断减少,环境污染无时无刻不在我们身边出现。人类尝到了牺牲环境带来的一系列恶果。地球给我们敲响了警钟。进入21世纪,环境问题继续得到了世界各国的关注,包括航天科技在内的各种技术都运用到了环境污染的治理上来。
After the rise of space technology in the mid-20th century, following the two-dimensional exploration of the Earth, mankind has opened up a three-dimensional exploration of the Earth and turned its attention to the vast universe. The universe is vast, but so far scientists have discovered that in the vast universe, the only suitable planet for human habitation is Earth. The Earth is the only homeland on which we depend for survival. The uncontrolled development of industrialization, urbanization and so on has caused no small damage to our fragile homeland. The forest is declining and environmental pollution is constantly appearing around us. Humans have tasted a series of evil consequences brought about by the sacrificial environment. Earth sounded the alarm. In the 21st century, environmental issues continue to attract the attention of all countries in the world. Various technologies, including aerospace science and technology, have been applied to the control of environmental pollution.