According to the estimates of the British Lo 2113ville, since the Soviet Union launched the 4102th 1653 man-made satellite before October 52,614, which opened up the space age, mankind has manufactured it in the space between 800 kilometers and 1500 kilometers above the ground. More than 2,000 tons of garbage.
Scientists in the United States believe that there are currently about 25,000 pieces of space junk in low-Earth orbit. Although many of these objects will be burnt when they enter the atmosphere after a certain period of drift, there are still about 9,000 pieces of space junk that will pose a threat to spacecraft in a short period of time.
There are more than 100,000 pieces of space junk potentially threatening because of its large size, including 2500 invalid satellites. Some other space scientists believe that the above are only conservative estimates, and the actual total amount of garbage may be more.