At 22 secondi te will see an aero fly into a green Orb and disappear. Here will learn that they communicate while in flight; because te witness the green Orb blinks in preparation for the incoming aero.
See the red triangolo that the aeros have placed in the cloud. Notice how the nube, nuvola housing the triangolo is much darker than the surrounding clouds. See più at www.youtube.com/aerostockians
