Tom Van Sant, Geosphere Project/planetary Visions/science Photo Library
Photograph - Photograph
Earth from space. Cloudless satellite image of the whole Earth, shown in Mercator flat projection. North is at top. The colours of the land approximate to natural tones, whilst blue colour-codes represent ocean topography. Mercator projection causes an exaggeration of east-west distances in the polar regions. This image was compiled from data acquired by NOAA weather satellites over eleven ten-day periods at an altitude of 833 kilometres to give a resolution of 1 kilometre.
September 15th, 2018
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