By far the largest instrument onboard NPP, VIIRS weighs in at roughly 556 pounds (252 kilograms).

VIIRS是目前NPP卫星上最大的仪器，重约252千克(556磅)。

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VIIRS will collect radiometric imagery in visible and infrared wavelengths of the Earth's land, atmosphere, and oceans.

VIIRS将在可见光和红外波段收集地球上陆地、大气和海洋的辐射图像。

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The pictures come from the Visible Infrared Imaging Radiometer Suite (VIIRS) satellite, and have been referred to as "The Black Marble" in reference to the famous "Blue Marble" daylight pictures.

ENGADGET: Alt-week 12.08.12: The oldest known dinosaur, lighting up a space station and the black marble