光云

These mystifying clouds are called Polar Mesospheric Clouds, or PMCs, when they are viewed from space and referred to as "night-shining" clouds or Noctilucent Clouds, when viewed by observers on Earth.

这些神秘的云彩被称为中间极地云层，或市局当他们从空间和被称为&夜间闪光&或云夜光云观看时，由观察员在地球上。

Caption:: Noctilucent clouds is the name "night-shinning clouds" in Latin, as its name suggest, it glow in electric bluw in deep twilight.

夜光云属於罕有的大气现象，首次於1885年被发现，顾名思义，是一层在夜间发光的云。

The noctilucent or "night-shining" clouds are at an altitude of 47 to 53 miles (76 to 85 km), where meteors and bright aurora lights are not uncommon and the atmosphere gives way to the blackness of space.

该夜光云或者&夜间发光的&云漂浮在海拔47-53英里（76-85公里）的外空。那里，流星和极光等气象比较常见，地球大气沉浸在太空的黑夜色中。

Noctilucent clouds with a herring structure in Finland.

芬兰境内的夜光云。夜光云也叫极地球状云，在高纬度地区夏季午夜时分到黎明前出现。

AIM has also found a strong resemblance between the noctilucent clouds and tropospheric clouds that hover near Earth's surface, which suggests that the dynamics of near-space weather may not be incredibly strange after all.

&他们如此微细，不会散光&，托马斯说。同时，AIM 卫星也发现，夜光云与漂浮在地球表面的对流层云极其相似。这说明，近太空的空气动力并非不可想象。

Shimmering noctilucent, or "night shining," clouds (seen above in Finland in an undated photograph) have long graced high-latitude sunsets around the globe.

一直以来，在夜间发光的云，或者称作&夜光云&在日落时分（这幅未标明日期的照片拍摄于芬兰）点缀着地球高纬度地区。

AIM's data on night-shining clouds have told scientists a lot about the upper atmosphere, he added:"The processes that control these clouds are very likely similar to the ones that control clouds down near the surface of Earth."

AIM对夜光云研究的数据提供给科学家们更多的是关于上层大气的，他说：&控制夜光云的机制与控制底层地表云层的机制类似。&

Scientists suspect that the increase in night-shining clouds may be due to climate change: Even as surface temperatures rise, the upper atmosphere is getting colder due to the buildup of carbon dioxide, creating perfect conditions for cloud formation, experts say.

科学家们怀疑夜光云的增加可能与气候变化有关：当地表温度升高时，上层大气层就会因为二氧化碳的的聚集而变得更冷，从而为形成云提供了理想的条件，专家说道。

Since 2007, scientists using the AIM satellite have been documenting night-shining clouds as seen from space, such as the above clouds over the Arctic regions of Europe and North America on June 11, 2007--four days before the previous photograph was taken.

自从2007年科学家运用AIM卫星已经开始从太空中记录夜光云，如上图中所示的夜光云出现在欧洲以及北美洲的极地区域上空。这张卫星照片摄于2007年6月11日，上一张照片拍摄后的第四天。

In 1883, the eruption of the Indonesian volcano Mount Krakatau caused widespread reverberations in climate, including night-shining clouds like those seen from the United Kingdom in this 1885 sketch by William Ascroft, an artist who recorded phenomena thought to have been linked to the eruption.

1883年印尼喀拉喀托火山的爆发引起了广泛蔓延的气候反应，其中包括夜光云。1885年英国、艺术家William Ascroft用画笔记录下了这次可能与火山爆发有关的夜光云现象。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。