1999-12-29 - Denver, CO - Chevron

I was driving home down 13th street, I saw a object hovering over 13th street very low, at first I could not tell how low as I was approaching it. It had a blue light then a red light then a blue light. That was all I could see of the object as I was appraching it at about 35 mph. I began to wonder what it was because it was so low and seemed to be hovering unmoving. I eventually ruled out plane because of the complete stillness of lights. I ruled out crane or building lights for low flying aircraft because there was nothing above two stories in a 10 block radius. I decided as I got closer it must be a hovering helicopter.I was coming up to the lights now and I could tell they were only about 6 stories high so I was expecting to see a helicopter. As I passed under the object I saw a greyish black boomerang shaped object.My mouth hung open and I said aloud to myself what in the #### is that! I could not stop in my tracks as there were cars behind me. I turned aff at the nest street came to a park postion and jumped out of my car. It was not longer then 30 seconds since I saw the object but it was gone . I jumped in my car after surveying the skyline went up to twelfth went up three blocks and came down thirtenth again.There was nothing above thirtennth or low flying craft anywhere that I could see. I came around again for a second pass and again nothing above thirteenth and nothing anywhere in the sky that I cold see except plane high above (very very high) I then realized something also paculiar about the obect although it had red an blue lights (which made me originally think it was normal air traffic )I realized at the third pass when I saw the other plane high up that the object I saw lights had never blinked once any of them. I had watched it for about 2 minutes coming up to it and not on light ever blinked.