Earlier this summer my friends and I while camping saw something very similar to this late at night/early in the morning. It started out looking like a forest fire in the distance and then it moved up and towards us, as it came closer it looked more and more like the picture. I don't really care to just to aliens as an answer but I thought it was really weird that it really looked like it was just a forest fire until it flew into the sky and out of the trees.