Gigantic Coronal Hole Caught Hovering Over The Sun's North Pole
Sunday, July 21, 2013 - 06:20
in Astronomy & Space
On July 18th, 2013, at 9:06 a.m. EDT, the Solar and Heliospheric Observatory (SOHO) captured an image of a gigantic coronal hole hovering over the sun's north pole. Coronal holes are dark, low density regions of the sun's outermost atmosphere, the corona, and contain little solar material and lower temperatures so they appear much darker than their surroundings. read more