In answer to the original question, yes I could explain them away, as could anyone with a basic understanding of optics and lighting.
The next question is, Am I prepared to spend ages typing a scientific explanation when you seem to be looking really hard for confirmation of a supernatural theory?
Awww go on I'm all intrigued about a scientific explanation.
Although I did like the one about an invasion fleet from wherever it was... an over active imagination?? or is everyone elses just underdeveloped??