| http://www.w3.org/ns/prov#value | - ???NASA is developing a collision-avoidance system that would allow fully autonomous, and not just remotely piloted, aircraft to operate in civil airspace.??? The aircraft uses a radar system and can detect the transponders found in larger aircraft. ???Eventually, engineers envision a system that combines radar, transponders, cameras and other instruments so drones can operate as safely as any oth
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