The ozone layer is a thin region of the upper stratosphere which protects us from ultraviolet radiation.

臭氧层是对平流层的保护上，从我们的薄紫外线辐射地区。

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The mission was to attach a HD video camera to a weather balloon and send it up into the upper stratosphere to film the blackness beyond our earth.

这项任务是把一个HD高清摄像机系在一个太空探测气象气球上，放飞到同温层上面，拍摄地球外面的黑暗。

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The bluer light is still filtered through Earth's atmosphere, but originates in rays of sunlight passing through layers high in the upper stratosphere.

这些蓝光也是从地球的大气中透过来的，但他们来自穿过大气高平流层的阳光。

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While the aircraft has flown before, this was the first flight for it after being loaded up with eleven different scientific instruments, which will be used to examine trace gases, aerosols, and dynamics of the upper troposphere and lower stratosphere.

ENGADGET: NASA's unmanned Global Hawk completes key test flight