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In 1978, NASA scientist Donald Kessler predicted a terrifying scenario that is becoming more likely every day. It is called the Kessler Syndrome. The theory describes a catastrophic chain reaction in Low Earth Orbit. Here is how it works: Space is getting crowded. There are thousands of active satellites and millions of pieces of "space junk" (dead satellites, spent rocket stages, and paint flecks) orbiting Earth at 17,500 miles per hour. If two large objects collide, they don't just break; they
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