i saw the "Lights over Phoenix" a few years ago. there were six (if memory serves) lights equally spaced that hovered in a stationary position for quite some time and then simply disappeared. i've heard no satisfactory explanation for them. i heard weather balloons, helicopters, etc... but none of the stated possibilities really fit what i saw.
but i didn't wake up with an 80 foot satellite dish sticking out of my rump so i wasn't overly concerned.