The Blue Orbs

The shermans watched fascinated as the object hung in the air, apparently defying the laws of gravity. It stopped abruptly in mid air about 15 feet above the ground, and hovered silently about 20 feet from them. This was easily the best view they had ever had of the elusive blue orbs. The exterior of the orb was a clear, hard shell, not unlike glass. Here in hunt for the skin walker, it says that the orb stopped about 20ft from them, though in skin walkers at the pentagon, it says it was about ten feet.