A black dot on the Arizona horizonLet me start by informing everyone that I have previously filed a report in Middletown, Ohio. This sighting took place while driving on interstate 8, around Gila Bend, Arizona, also this sighting is not related closely to the sighting that I have recently reported... Me and my father were on a road trip to Sherman Oaks, California. We were driving through Arizona on Interstate 8 at about 7:14 in the afternoon (about the time of sunset). I was concentrating on the road when my father asked me to look into the horizon around the northwest direction. What I saw didn't amaze me at first, There was a black dot below the clouds. I watched it a little longer before my father mentioned that he had been viewing it for about fifteen minutes, and it hadn't moved. I pulled off at a rest area and we both got out. We sat and watched it, throwing out ideas of what it might be. My father suggested a helicopter, but it sat so still for so long that I wasn't convinced. He then suggested a weather balloon, but I quickly threw that theory out because I knew that weather balloons were metallic and were moved by the wind. As the sun set his last theory was that it was a blimp. But by that time it was dark and at least an hour went by and it still had not moved, there were also no lights surrounding the object. As night fell onto the land the object slowly disappeared. Which left me to wonder what it was.... possibly a ufo, possibly a secret government project.