Jan 26, 2013

Picture of the Day: Aurora Over Whitehorse




aurora borealis over whitehorse yukon canada Picture of the Day: Aurora Over Whitehorse

Photograph by David Cartier Sr


On August 31, 2012 a long filament of solar material that had been hovering in the sun’s atmosphere, the corona, erupted out into space at 4:36 p.m. EDT. The coronal mass ejection, or CME, traveled at over 900 miles per second. The CME did not travel directly toward Earth, but did connect with Earth’s magnetic environment, or magnetosphere, causing aurora to appear on the night of Monday, September 3.

An aurora is a natural light display in the sky particularly in the high latitude (Arctic and Antarctic) regions, caused by the collision of energetic charged particles with atoms in the high altitude atmosphere (thermosphere).



picture of the day button Picture of the Day: Aurora Over Whitehorse