Post has shared content
Light Pillars over Alaska
What's happening behind those houses? Pictured here are not auroras but nearby light pillars, a nearby phenomenon that can appear as a distant one. In most places on Earth, a lucky viewer can see a Sun-pillar, a column of light appearing to extend up from the Sun caused by flat fluttering ice-crystals reflecting sunlight from the upper atmosphere.

Usually these ice crystals evaporate before reaching the ground. During freezing temperatures, however, flat fluttering ice crystals may form near the ground in a form of light snow, sometimes known as a crystal fog. These ice crystals may then reflect ground lights in columns not unlike a Sun-pillar. The featured image was taken in Fort Wainwright near Fairbanks in central Alaska.  

Image & info via APOD
http://apod.nasa.gov/apod/astropix.html

Light Pillars - Read & Learn:
http://www.atoptics.co.uk/halo/lpil.htm

Image Credit & Copyright: Allisha Libby

#naturalphenomena   #lightpillars  
Photo

Post has shared content

Post has shared content
I'm a middle squeezer. What are you?
Photo

Post has shared content
Meep
I am reporting Nicole mckenzie for posting this unrelated thing on discussion
Photo

Post has shared content

hi guys
Wait while more posts are being loaded