Triangle UFO observed for 15 min over Arkansas interstate 67 just past mile marker 29.My wife pointed out a triangle shaped UFO with a orangeish color lite on the leading point. We were just past exit 29 heading north on interstate 67. The object was moving at a very slow pace. My wife saw it first and pointed it out to me immediately. I promptly pulled to the shoulder of the interstate so I could exit the vehicle and observe it better. We watched the object for aprox 15 min before it just disappeared.