Long line of lights seen above Thompson Hill in Kennewick, WashingtonIn Kennewick, Washington on 9/21/12 at 21:45, I was driving up Taft Street by my house when I saw a blinking light above Thompson Hill. I thought nothing of it at first, assuming it was just a radio tower or a windmill. However it then occurred to me that there are no structures such as radio towers or windmills on Thompson Hill. Additionally, I then noticed that there was not just one blinking light but rather an entire line of lights. Some of these lights were blinking like you would see on the bottom of an airplane however some were regular lights. This line of lights had to be at least one block long. The lights appeared to be hovering above the hill but moving at a moderate speed heading east. I rolled down my car window to listen for any sounds but I heard nothing. By now my jaw was on the floor. I was trying to describe what I was seeing to my girlfriend who I was on the phone with at the time of this sighting but I was too awestruck to even put it in words. I continued to drive east along 20th street to follow these lights but they disappeared behind the hill. However as the lights were disappearing behind the hill I thought I noticed a triangular shape in the middle of this long line but I cannot be sure. By the time I got to a nearby vantage point where I could see the entire city, the lights were nowhere to be seen. I have been trying to decide if there is any chance this could have been an airplane or helicopter but I don’t see how it could have been. There was no sound, the object was way larger than any commercial airplane or helicopter and the object appeared to be hovering, not flying like an airplane would.