The world’s metropolises glow yellow-white, as if someone sprinkled the continents with a dusting of tiny stars. There are no cities or ports or bridges.īut look at night, and you will see a very different planet. It’s impossible to tell anyone is home, especially anyone who thinks, and moves around, and builds things. Our blue marble is interspersed with the lush green of forests, but that’s about the only sign of life. This video is public domain and can be downloaded at the NASA site.As seen from space, Earth looks quiet, and a bit lonely, during the day. This video uses the Earth at night view created by NASA’s Earth Observatory with data processed by NOAA’s National Geophysical Data Center and combined with a version of the Earth Observatory’s Blue Marble: Next Generation. It took 312 satellite orbits and 2.5 terabytes of data to get a clear shot of every parcel of land surface.
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. (They do just miss Tasmania in this….but it’s still worth a watch!)
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