A low, small hovering red orb with a white aura around it.

On July 5, 2008 at 9:41 PM, my brother was driving on Highway 70 West, I was in the front passenger seat. We were just outside of Blue, OK. We saw a red orb approximately 3-4 ft in diameter hovering right above power-lines beside the highway. I thought it was a firework at first, but as it continued to hover we stopped beside it.  As we stopped, I noticed it had a faint white glow around it. It slowly "flew" away. The entire encounter lasted around 2 minutes. I managed to get a photograph after several attempts. I took four pictures in total, but only one is clear enough to see. I have never seen anything like it. There were no flashing lights and no audible sound. If you have any idea what this was please let me know!! I hope that you can zoom in on my photo more than I was able to do. Thank you.