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Low Earth Orbit, Our Future Danger Zone
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Low Earth Orbit (LEO) is the near Earth space zone internationally designated from 160 kilometers (99 miles) out to a distance of 2000 kilometers (1200 miles). Primarily, it is the orbital home to numerous satellites used for communication, the military, experiments, and the International Space Station. Unfortunately, it is slowly becoming the home of an increasing and dangerous collection of space junk.