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Guides: Pollution

Last Updated: Thursday August 04 2005 14:17 GMT

Light

Light pollution over the US
Light pollution happens when outside lights, such as a streetlight or a security light, points light upwards into the night sky.

This light gets scattered in the sky and makes an orange foggy glow to appear above a town.

What can happen?

It is likely that we won't be able to see the stars in the night sky if the amount of light pollution isn't closely controlled.




Guide to Pollution


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