As we know that during a solar flare, a large number of electrons and protons are ejected from the sun. Some of them get trapped in the earth’s magnetic field and move in helical paths along the field lines. The field lines come closer to each other near the magnetic poles. Hence the density of charges increases near the poles. These particles collide with atoms and molecules of the atmosphere. Excited oxygen atoms emit green light and excited nitrogen atoms emit pink light.
So is it possible to (or a device already exists of which I am unaware) concentrate the magnetic fields of the earth say near your house for enjoying the view? (if you know what I mean) Or can we depict the MEC in any other form on such a large scale?