The Northern Lights fascinate the human being since immemorial time, with their colors, myths, and legends. This phenomenon occurs in the ionosphere region, which is characterized by its plasmatic state, due to ionization of atmospheric gas atoms, particularly oxygen and nitrogen. In this paper, the path of O2+ and NO+ ions, at different altitudes and time, is described from stochastic approach by 3D random walk associated with ambipolar diffusion model. It is offered an algorithm based on unbiased Cartesian coordinates system, whose results for ions displacement are presented as 3D-cartograms. These figures illustrate the erratic mass diffusion of the ions on the Northern Lights.