I had just dropped a friend off at her house after leaving a mutual friends house at about 2am. I was not under the influence of any mind altering drugs or alcohol. I had just started to drive to my house when I saw a yellowish White light that looked like a bright shooting star shoot through the air. It was so far above me I could not tell you the size or any distinguishing features. It was heading towards Three Mile Island (a nuclear power plant near where I live) when it suddenly pulled a U-Turn like maneuver and spead off in another direction. The whole sighting was just a few seconds. I have seen very similar things before, about 3 sightings counting this one. Although the prior signtings I had others with me who also witnessed the UFO sightings.