(in cooperation with AstroPilot.info)
Photograph Explanation:

Noctilucent Clouds. This image was taken 15 June 2004 while airborne at 37,000 feet. From this position over the mid-North Atlantic Ocean (near 56N, 030W) the only observers would be in man-made planes or ships, isolated that night away from the rest of the world. The high contrast features like the fish-bone pattern here are truly captivating to the imagination. An incredible sight! Photo: BrianWhittaker (.com) as seen on www.SpaceClouds.info.