The Fermi Paradox famously asks why we hear only silence from a universe that should be teeming with intelligent civilizations. One sobering theory suggests that advanced societies might inevitably trap themselves on their home planets, creating a "Great Filter" out of their own orbital debris. This concept, known as the Kessler Syndrome, was formulated in 1978 by NASA scientist Donald Kessler. By applying mathematical models of asteroid collisions to artificial satellites, Kessler shattered the early, optimistic Space Race assumption that atmospheric drag would naturally clean up human-made orbital messes, demonstrating instead that discarded technology could compress millions of years of planetary collision dynamics into mere decades of runaway fragmentation.

At orbital velocities of 10 kilometers per second—over 22,000 miles per hour—eve ...