Space debris

By space junk refers to all manmade objects and their fragments in space, which is already faulty, not functioning, and will never be able to serve any useful purpose. Currently in low earth orbits up to altitudes of about 2000 km is, according to various estimates, about 220 thousand (300 thousand according to the UN office for outer space Affairs, October 2009) man-made objects weighing up to 5000 tons.
In the case of UFOs, it is possible to expand this list lost cosmonauts things (tools, etc.).

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