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02 October 2012

What color is the sky?

Why is it dark at night?  A simple question? Well....


Published on Sep 30, 2012 by 
Have you ever wondered why you look up and see a dark sky at night?
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Of course, the next question is, "Why is the sky blue?"
NASA's JPL has a video explanation on their Ask an Astronomer web page, (which has explanations of other very interesting questions).  Discovery Networks posted this one on their YouTube Chanel:

Uploaded by  on May 13, 2010
http://www.discoverynews.com Why is the sky blue, it sounds so basic, but do you know the answer? Kasey-Dee Gardner finds out.