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In recent years, the number of stars in the sky that people can see with the naked eye has decreased dramatically.
Scientists have answered the question of why this is happening, According to the Air Force.
According to the researchers, the cause of this phenomenon is light pollution of the sky from artificial lighting. It is noted that the brightness of artificial lighting has been increasing every year since 2011.
The change in the visibility of the stars, which people reported by submitting data on the number of stars to an online project called Globe at Night, was equivalent to a yearly increase in brightness sky by almost 10%
Scientists have noted that a child born in an area where 250 stars are visible in 18 years is likely to see less than 100 stars in the same place.
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