It was the strangest blue light we had ever seen and then it changed and started following us all the way home.My friend and I were coming home from a casino taking the back roads home as we normally do. It was a bright night out-almost a full moon and the stars were very bright. Very clear. We were coming up a hill and at the top of the hill on the other side of a row of trees was a bright blue light. I was driving slow because the area is known for alot of deer. The light was nothing I had seen before and I asked my friend to look at it. I slowed down to almost a stop and observed it for a short time. We were talking about it being a strobe light like on a police car or something, but it was solid blue and wasn't emitting light in a fixed manner. It was almost throwing light like a laser but like ribbons of light. It didn't light up the field it was in so you couldn't see what it was attached to. We discussed it being a tractor but the light was so weird I had never seen anything like it before. Then the light started coming straight towards us at a fast rate and I freaked. I hit the gas and started down the road. I told her to keep watching it and tell me what it does. We came upon another hill so we lost sight of it for a second then she said that it must have been an airplane because it's in the sky now. I asked her what it looked like(I couldn't see it-we had an old Rambler car and I'm missing the side mirror). She said she wasn't sure what kind of plane or what it was. Then I told her I would stop and take a look. We slowed down and I rolled my window down and I looked out and I knew immediately it wasn't an airplane or helicopter. It had two panels of light on it and they were changing colors randomly from left to right. They would be green, yellow, red, white, orange and blue. At this point I had no doubt in my mind what it was we were observing. We were a ways from the next town and no cars on the road so I drove the old Rambler as fast as it would allow. The thing in the sky followed us at a distance of maybe a mile. When we came to the next intersection and I had to turn it turned wi! th us and kept following us out the right side. It stayed a mile away from us at all times until we got to the next town. There is a lake there and it was hovering over the lake and that is the closest it got to us. We got to a major highway 4 miles down the road. I figured we would wait for a car and follow it. We waited at the stop sign but nobody came so we sat and watched for it and it appeared north of us again. I sped out for home-15 miles. My friend saw it only once in the next 4 miles. It stopped dead in the sky and headed due east and a high rate of speed. We had to go through another small town to get home yet and nobody was in sight so we kept speeding home. We never saw it again until we got home and it was coming at us about 1-2 miles out over town. The lights were doing the same thing on it the whole time it followed us. We were so freaked out we headed home and ran in the house and thought about what to do next. We went into the yard after our blood pressure came down to look for it but nothing but stars and the moon. Thank God.