Observed a lighted streamer like object flying or being towed over St George, UT, headed Northeast, slowly at about 5000 feet altitude.While driving to the gym, headed North on I10, at mile 3, I noticed a light overhead. Looking up, I saw a streamer like object about 5000 feet up, being pulled by something. I also saw an aircraft of some kind following the streamer. The streamer appeared to be 100 meters long and very colorful. No flashing lights, but it was bright from internal lighting. The streamer was traveling about 50-100 kph, north east bound. No noise I could detect, but I had the radio on. The object "disappeared" behind terrain and buildings and I never saw the aircraft behind the streamer after the first sighting.Very light traffic at that hour here in St George.The only thing I really saw was the streamer like object, which was very colorful and bright, mostly an orange color.((NUFORC Note: Space debris. PD))