I heard what sounded like fireworks so I stepped out onto the deck, it was very dark and the night sky was bright, all of a sudden I notice what looked like sparks moving north directly over Kentucky Lake, they weren't sparks as they flew together, some side by side others in single file glowing a bright reddish orange color, there was absolutely no sound and no flashing lights. We have helicopters that fly over us heading to Fort Campbell but they are so loud you know they are coming. I lost visual on them when they went behind a tree line blocking my view, I was waiting for them to show back up as they went past the trees but they did not, I have no idea were they went. This is the second time I have seen something strange in the night sky here and my second report to MUFON.