... Auroral Currents . ... Polar Caps . ... Aurora from Space . ... Magnetic Storms . ... Plasma phenomena occuring at one place in the magnetosphere also affect other locations This linkage is most pronounced between points that share the same field line, since field lines guide the motion of ions and electrons. ... Early researchers, who believed auroral electrons came from the Sun (see history ) could not understand why the aurora was absent from the vicinity of the magnetic pole itself. ...