最近几十年来,人们不仅把地球弄得肮脏不堪,而且在宇宙中也有3000吨垃圾在飞,这首先是宇宙飞船的碎块和残片。据科学家们初步估计,到2010年这种垃圾至少会达到1万吨,仅大的碎块,即直径10厘米以上的碎块,就会有7500吨。其中的一些碎块用望远镜就能看到,这些高高在上的太空垃圾,虽然表面上很遥远,但却对人类造成了现实威胁。 威胁宇航安全 如果考虑到这些碎块在地球轨道上飞行的速度,甚至直径一厘米的小铁块在和宇宙飞船及轨道站碰 In recent decades, people have not only dirty the earth, but also 3,000 tons of rubbish in the universe, first of all, fragments and fragments of the spacecraft. According to preliminary estimates by scientists, this kind of rubbish will reach at least 10,000 tons by 2010, and only large pieces, that is, fragments of 10 centimeters in diameter or more will have 7,500 tons. Some of these fragments can be seen with telescopes, and these elevated space debris, although seemingly remote, poses a real threat to humans. Threatening Astronautical Security If you consider the speed at which these fragments fly in orbit, or even a small diameter of one centimeter in the spacecraft and orbital stations touch