5-6 balls of light floating above the Mechanicsville/Middlebrook area, spotted from Alcoa HwyThey moved so smoothly and with such perfect synchronization, almost as if on a puppet string. The light radiating from them was unlike that of a helicopter (our first suspicion). It glowed like a ball of light, yet, you could still tell that it was an OBJECT. You could also tell their position in the sky. THEY WERE NOT THAT FAR FROM US....maybe a mile away from us and a mere 500-700ft. from the ground. For these craft to be so close to the ground, they made no audible disturbances. (This would not be the case if they were government aircraft.)