Light in sky changing color and moving sporadically in relative spot in sky. (Also, streak of light that fell from sky straight down)Light appearing every other night around my area of residence. I've seen this occurrence twice so far. It's a very bright and flashing light source in the night sky; purple, blue, green, white; extremely vibrant colors in no specific order. Movement is sporadic in speed and direction; however, it never leaves the same sector of the sky. It's behavior is not that of a helicopter, plane, or Drone (it stays constantly moving for an hour+, that's when I have seen it; I do have to go to bed and am not able to watch it all night all though I very much long too.) Movements are not in great spans. Very subtle; I had to carefully watch it in order to assure myself it is really moving and it wasn't a figment of my imagination. As I currently just continued to watch it a bright blue/white ball/streak fell out of the sky and behind a tree about 15 miles away; half the distance of the light in the sky. (please don't think this is a hoax)((NUFORC Note: We suspect that the object may have been a star. PD))((NUFORC Note: Witness elects to remain totally anonymous; provides no contact information. PD))