Pulsating Aurora over Iceland . ... Featured here is a dramatic video that captured some impressive pulsating auroras in mid-March over Svлnafellsjфkull Glacier in Iceland. ... The quick rapidity of the pulsations seen here is somewhat unusual -- more common are aurora with pulsations that last several seconds. Recent research shows that pulsations are more common in electron-generated aurora, rather than proton aurora , and that the Earth's local magnetic field may fluctuate in unison . ...