In daylight our big blue marble is all land, oceans and clouds. But the night - is electric. This view of Earth at night is a cloud-free view from space as acquired by the Suomi National Polar-orbiting Partnership Satellite (Suomi NPP). A joint program by NASA and NOAA, Suomi NPP captured this nighttime image by the satellite's Visible Infrared Imaging Radiometer Suite (VIIRS). The day-night band
![NASA | Earth at Night](https://cdn-ak-scissors.b.st-hatena.com/image/square/c0b71e2f0bc50319392e4f49804e819a2f05c302/height=288;version=1;width=512/https%3A%2F%2Fi.ytimg.com%2Fvi%2FQ3YYwIsMHzw%2Fhqdefault.jpg)