I was 16 and standing outside looking to mountain with road on top called Skyline Drive. It was night and my boyfriend and I were looking at mountain and were amazed that car lights could be seen when the lights, 5 in a row, moved slowly off mountain toward Reading Airport. The lights stayed in a row which made us think it was one structure, maybe blimp or something. We waited for helicoptor noise or some noise but never heard anything as they became closer. Suddenly the 5 lights all got a little brighter and spread out and up very fast and disappeared. We were terrified and called Reading airport but they said they saw nothing and had no blimp or helicopters in area. We searched the newspaper the next day but no one else seemed to have seen it. I don't tell too many people because it still frightens me to think about it.