noctilucent cloud

基本解釋

The recent observations of noctilucent clouds at all kinds of latitudes provide an extra impetus to understand what is going on up there.
最近在各種緯度進行的夜光云觀察，提供了了解天上發(fā)生著什么的特別動力。
It is the season for viewing Polar Mesospheric Clouds, and with our high beta-angle we were able to capture this thin layer of noctilucent clouds at sunset (6-25-2010).
到了觀看極地中氣層云的時候，在太空中使用高β角度，我們能捕捉到日落時刻這層薄薄的夜光云。
The sky over Omaha on July 14th, snapped by Mike Hollingshead at Extreme Instability 2. A rendering of the noctilucent clouds created from data obtained by Russel’s NASA project, AIM.
利用拉塞爾NASA項目獲得的數據繪制的夜光云效果圖。