Skip to main content

Posted by Specola

NASA Astronomy Picture of the Day:

What's happening across that field? Pictured here are not auroras but nearby light pillars, a phenomenon typically much closer. 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 last month across the Wulan Butong Grasslands in Inner Mongolia, China.

Photo by N. D. Liao

Click the Image to learn more about us

Snohomish, Skagit and Island County

Hunger impacts all of us | 360-435-1631

Giving Kids in Need the Chance to Read
  Non-profit organization - Seattle, WA

Powered by Volunteers | 360-794-7959

FLO JAPANESE RESTAURANT
425-453-4005 - 1150 106th Ave NE Bellevue, WA 98004

Read more from Pepe's Painting LLC