The Avian Collision Avoidance System (ACAS) shines UV lights on power lines to prevent collisions by Sandhill Cranes. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news ...
So much junk is filling Earth's orbit that collision avoidance has become a busy business. "We're talking about the dead satellites, the rocket bodies, the fairings, the wrenches, the gloves ...
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