In the Appalachian mountains of North Carolina, a very strange phenomenon has been reported for over 100 years. Lights of multiple colors have been observed rising and falling and darting throughout the skies over Brown Mountain. What’s happening in the skies of the Appalachian mountains? Why are there enough eyewitness sightings to accommodate years of reports? Why was a book written about Venutian alien sex originating in the caves of Brown Mountain itself? Find out this week, on The What If? Podcast.