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美国会所属的技术研究处(OTA)10月11日报告,到90年代末低太空轨道散落的碎片将对人造飞行体构成严重威胁.低太空轨道(高度2000公里以下)快速飞行的碎片不仅能击穿载人的太空船,其它所有的人造飞船,除驶向月球者外,亦尽在其威胁之中.美国上周对地球轨道上6645个,总重量为200万公斤的人造飞行体进行了追踪观察.这些飞行体以每秒7公里的速度向四面八方运行.有人估计其总数在30,000～70,000之间.而OTA认为其中具有功能者只占6%,其余为用过的火箭推进器,卫星爆炸后散落的碎片,以及失去功能的卫星等.
The U.S. Congressional Technical Research Office (OTA) reported on October 11 that debris flying from low-Earth orbit would be a serious threat to man-made airplanes by the late 1990s. Fragments of fast-flying low-Earth orbit (altitudes below 2,000 km) The manned spacecraft, all other manned spacecraft that penetrated the manned spacecraft, except the pilgrimage to the moon, also made its most serious threat. The United States last week conducted 6,645 man-made flying objects on Earth’s orbit in a total weight of 2 million kilograms Followed by observation.These flying bodies at an average speed of 7 kilometers per second run in all directions.It is estimated that the total number between 30,000 to 70,000.OTA that only 6% of those who have the function, the rest of the used rocket propulsion, Satellites scattered after the explosion, as well as the loss of functioning satellites.