<正>太空垃圾大多都是围绕地球轨道的无用人造物体,小到人造卫星碎片、漆片、粉尘,大到整个飞船残骸。你们知道太空垃圾的危害吗?Rockets have been sent to space to work. But nobody thinks of how they will behave after stopping work. When a rocket or satellite leaves the earth,
科研之友
微信
新浪微博
Facebook
分享链接
