High up in Planet’s orbit, numerous human-made things huge and little are flying at rates of over 15,000 miles per hour. The things, which vary from non-active satellites to pieces of tools arising from surges or accidents of formerly released rockets, are room particles, informally described as room scrap. In some cases the things ram each various other, getting into also smaller sized items.
发布者：Dr.Durant，转转请注明出处：https://robotalks.cn/space-debris-poses-growing-threat-but-new-study-suggests-cleanup-is-feasible/
