人类在保护地球环境的同时,又如何保护太空家园?随着空间技术的进步,人类进入和利用太空的活动不断加强的同时,也产生了越来越多的空间碎片,这些“空间垃圾”已经严重威胁着航天器的安全。本刊特编撰“清洁太空”专题,介绍世界各国的对策。 How can human beings protect the space home while protecting the earth’s environment? With the advancement of space technology, more and more space debris have been produced as human beings enter and use space, and these “space rubbish ”Serious threat to spacecraft safety. This issue special compilation “clean space ” topic, introduce the countermeasures of all countries in the world.