Skip to main content

Posted by Specola

NASA Astronomy Picture of the Day:

It's northern noctilucent cloud season. Composed of small ice crystals forming only during specific conditions in the upper atmosphere, noctilucent clouds may become visible at sunset during late summer when illuminated by sunlight from below. Noctilucent clouds are the highest clouds known and now established to be polar mesospheric clouds observed from the ground. Although observed with NASA's AIM satellite since 2007, much about noctilucent clouds remains unknown and so a topic of active research. The featured image shows expansive and rippled noctilucent clouds wafting over Paris, France. This year, several northern locations are already reporting especially vivid displays of noctilucent clouds.

Photo by Bertrand Kulik

Click the Image to learn more about us

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

Snohomish, Skagit and Island County

Read more from Pepe's Painting LLC

Hunger impacts all of us | 360-435-1631

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