The aurora borealis.The aurora borealis aurora borealis (bôr'ēăl`ĭs) and aurora australis (ôstrā`lĭs), luminous display of various forms and colors seen in the night sky. paints the sky above Soldotna, Alaska Soldotna is a city in Kenai Peninsula Borough, Alaska, United States. At the 2000 census the population was 3,759. According to 2005 Census Bureau estimates, the city had a population of 4,087.[1] It is the seat of the Kenai Peninsula Borough. , on October 29. Also called the Northern Lights, the aurora is caused by charged particles from the sun colliding with gases in Earth's atmosphere “Air” redirects here. For other uses, see Air (disambiguation). Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly (by molar content/volume) 78% nitrogen, 20.95% oxygen, 0.93% argon, 0. . The resulting displays of light and color are commonly seen in polar regions, but massive solar storms this fall extended the effects across much of the Northern Hemisphere, including parts of the northern continental U.S. |
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