Re: Aliens?
Not that I would read the DE even on the vain hope there might be some useful data but I'd imagine any mining area would be a UFO hotspot. Earth fractures seem to cause luminous phenomena above ground - some piezo electric effect seems to cause electromagnetic loops that, above ground can focus in damp air and cause low level aurora. the phenomena is often seen along earthquake faults and mines do lots of mini earthquakes as they continue to settle.