![]() This would make spacecraft viability impossible and prove a barrier to space. Some believe that we have reached a “tipping point,” whereby debris in Low Earth Orbit is colliding in a runaway cascading debris-generation scenario.the Kessler syndrome seen in the film Gravity. NASA estimates there will be a catastrophic collision every five to nine years and the pace will accelerate. The number of objects larger than a centimeter will reach 1 million by 2020. With relative velocities higher than 26,000 mph, debris as small as half a centimeter can take out spacecraft. 100 million shrapnel pieces are smaller than a centimeter. ![]() 21,000 debris objects are larger than a softball.inactive satellites, rocket stages, and fragments created by collisions, explosions and normal operations. Orbital debris is uncontrollable litter left in orbit. ![]()
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