by APOD Robot » Sun Jan 01, 2017 10:22 am
A Full Sky Aurora Over Norway
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.
[/b]
[url=https://apod.nasa.gov/apod/ap170101.html][img]https://apod.nasa.gov/apod/calendar/S_170101.jpg[/img] [size=150]A Full Sky Aurora Over Norway[/size][/url]
[b] Explanation: [/b] Higher than the [url=http://en.wikipedia.org/wiki/Burj_Khalifa]highest building[/url], higher than the [url=http://www.scaruffi.com/travel/tallest.html]highest mountain[/url], higher than the [url=https://apod.nasa.gov/apod/ap110724.html]highest airplane[/url], lies the realm of the aurora. [url=http://www.exploratorium.edu/learning_studio/auroras/happen.html]Auroras[/url] rarely reach below 60 kilometers, and can range up to 1000 kilometers. Aurora light results from energetic [url=http://www-istp.gsfc.nasa.gov/Education/whelect.html]electrons[/url] and [url=http://hyperphysics.phy-astr.gsu.edu/hbase/particles/proton.html]protons[/url] striking [url=http://en.wikipedia.org/wiki/Molecule]molecules[/url] in the [url=https://www.nasa.gov/mission_pages/sunearth/science/atmosphere-layers2.html]Earth's atmosphere[/url]. Frequently, when viewed from space, a [url=https://apod.nasa.gov/apod/ap970402.html]complete aurora[/url] will appear as a circle around one of the Earth's [url=https://science.nasa.gov/science-news/science-at-nasa/2003/29dec_magneticfield]magnetic poles[/url]. The [url=http://www.astrofilm.com/AuroraKirkenes360_view.html]featured wide-angle[/url] image, [url=http://www.comedycentral.co.uk/sites/default/files/styles/vimn_image_embed/public/gallery/large/cats_stuck_017.jpg?itok=EHshKFva]horizontally compressed[/url], captured an [url=https://apod.nasa.gov/apod/ap111205.html]unexpected auroral display[/url] that stretched across the sky five years ago over eastern [url=http://en.wikipedia.org/wiki/Norway]Norway[/url].
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