Nature s light show can appear at dusk and may last a few seconds to a few minutes or all night. The aurora changes constantly in power, color and shape. The University of Alaska is one of many research facilities studying the aurora. As electrons and protons enter the upper atmosphere towards the Earth s magnetic poles, they emit radiation seen as light. The different colors we observe depend on the type of gas atoms the electrons and protons hit.
Auroras are brighter and spread over larger areas after intense solar activities.
The Online Aurora Forecast is updated daily for the following two nights. Copyright 1997- 2001, Agate Inn. All rights reserved. The logos and names used in these pages are the property of their respective owners.