60 Most Mysterious Places On The Earth That You Should Visit

Hessdalen Valley

The recurring incident began in 1981 in Norway when the people of Hessdalen Valley in central Norway saw colored lights dangling in the sky particularly from 9 p.m to 1 a.m. They occur mostly in winter. The reason could be anything ranging from solar activity, cosmic rays, heated nanoparticles, and mini-black holes to the quantum fluctuation of the vacuum state. Scientists did lots of research on the subject but unfortunately, all of them met a dead end. There is one more reason that seems to be a logical one. Perhaps, the lights were emanating from an airport located in distance. However, this too does not fit well.