Why Do Highway Signs Go Dark Under Silent UFOs?
A driver noticed the highway sign disappear before the road did. The green overhead board should have been glowing like every other sign along the interstate. It marked the next exit, a fuel station, and a small town thirty miles ahead. Instead, it became a flat black rectangle hanging over the road. The headlights still reached it. The lane markings were bright. The guardrails reflected normally. Even the sign behind … Read more