![]() It took 312 satellite orbits and 2.5 terabytes of data to get a clear shot of every parcel of land surface.Īnd a flattened version of it that makes NZ look pretty dark compared to some of those massive urban areas like Europe or the eastern half of the US.The last time NASA released a global map like this was in 2012, and the agency says these nighttime world maps are both a "gee-whiz curiosity for the public and a tool for fundamental research for nearly 25 years." Creating such an image is difficult and time consuming, as light on the planet is constantly shifting. This new image is a composite of data acquired over nine days in April and thirteen days in October 2012. The day-night band on VIIRS detects light in a range of wavelengths from green to near infrared and uses filtering techniques to observe signals such as city lights, gas flares, and wildfires. A joint program by NASA and NOAA, Suomi NPP captured this nighttime image by the satellite’s Visible Infrared Imaging Radiometer Suite (VIIRS). ![]() 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). In daylight our big blue marble is all land, oceans and clouds. ![]() The satellite used is even powerful enough to pick up the lights from ships in the ocean. NASA has released a new version of its Earth at Night image showing just how lit up the earth is at night from both natural and man made light sources. ![]()
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