Café Del Mar - Lux (Northern Lights).mp4

Northern Lights; the Aurora Borealis

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Summer tourists won't have much chance of seeing the famous Aurora Borealis, the dancing fluorescent ribbons that light up the night sky, enthralling even "sourdoughs" (old-timers) in Alaska.

The aurora was named after the Roman goddess of dawn, and was long thought to be produced by sunlight reflected from polar snow and ice, or refracted light much like rainbows.

The University of Alaska is but one of many facilities where research still continues into the phenomenon, but so far, research seems to indicate that the aurora is caused by radiation emitted as light from atoms in the upper atmosphere as they are hit by fast-moving electrons and protons. In other words, energy particles from the sun collide with the Earth's magnetic field.
The kind of atom determines the color.

It also appears that the sun has an influence: auroras become brighter, more distinctive, and are spread over a larger area two days after intense solar activity. Two days is the time it takes the "solar wind" to arrive.

Dirk Lummerzheim, a research professor who studies the aurora borealis for the Geophysical Institute at the University of Alaska Fairbanks explains the present lack of northern lights this way:

"We are at the solar minimum. When solar activity dies down like this, the aurora activity also diminishes in the north."

Lummerzheim said that 2008-2009 was the second winter in a row the aurora had been "quiet." Normally, the low in the solar cycle only lasts about a year, but he described the current solar minimum as "very long, very deep."

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[anacondaLAND]

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i m gonna cry i loooooove it

thanks nesmartin for that perfect relaxing song