Fewer Stars Visible To Naked Eye

More light here on Earth is making it harder to see stars in the sky. The reason is brightness from artificial lighting that's been increasing for the past 12 years. A scientist with the German Research Center for Geosciences told the BBC our naked-eye view of the stars is disappearing. Researchers say so-called "sky brightness" has gotten ten-percent brighter every year since 2011. They say that means a child born in an area where 250 stars were visible would probably see fewer than 100 stars in the same area 18 years later.

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