2016年6月6日 星期一

Space Station View of Noctilucent Clouds


Expedition 47 Flight Engineer Tim Peake of the European Space Agency photographed rare, high-altitude noctilucent or "night shining" clouds from the International Space Station on May 29, 2016. Noctilucent clouds form between 76 to 85 kilometers (47 to 53 miles) above the Earth’s surface, near the boundary of the mesosphere and thermosphere. via NASA http://ift.tt/25HBcgZ

沒有留言:

張貼留言