Explanation: Higher than the highest building, higher than the highest mountain, higher than the highest airplane, lies the realm of the aurora. Auroras rarely reach below 60 kilometers, and can range up to 1000 kilometers. Aurora light results from energetic electrons and protons striking molecules in the Earth's atmosphere. Frequently, when viewed from space, a complete aurora will appear as a circle around one of the Earth's magnetic poles. The featured wide-angle image, horizontally compressed, captured an unexpected auroral display that stretched across the sky five years ago over eastern Norway.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: aurora - severnoe siyanie Publikacii so slovami: aurora - severnoe siyanie
Sm. takzhe: Novogodnie severnye siyaniya Rozhdestvenskaya elka iz severnogo siyaniya Polyarnoe siyanie vokrug severnogo polyusa Saturna Raznocvetnoe polyarnoe siyanie nad Novoi Zelandiei Severnoe siyanie nad Ital'yanskimi Al'pami Severnoe siyanie v Zapadnoi Virginii Yuzhnoe polyarnoe siyanie i Mezhdunarodnaya kosmicheskaya stanciya Vse publikacii na tu zhe temu >>