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‘Fake’ Diwali pic goes viral on FB, NASA ‘clears the air’

Dailybhaskar.com  

New Delhi: Social media often mislead us into images that are too far away from reality. Recently, an image, claiming to be the satellite photograph of India during Diwali, was widely circulated on internet. The image shows Indian cities in various hue and shades of blue, green and red.


The image is being widely circulated on the internet website, Facebook as the satellite photograph of India on Diwali (November 14). However, in reality, the image is reportedly based on satellite image of several days; superimposed to highlight the trend in population change over a decade.


The image is created by NOAA scientist Chris Elvidge under the U.S. Defense Meteorological Satellite Program (DMSP).


It shows the growth of population from 1992 to 2003. The white areas on the photogrpah indicates citis that were visible prior to 1992, while blue, green and red shades indicate cities that came into being in 1992, 1998 and 2003 respectively.


The light works during Diwali are too subtle to be detected by a space satellite, says NASA.

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