The daytime sky on Earth is blue because the light from the Sun strikes molecules in the Earth's atmosphere and scatters in all directions. Blue light is scattered more than other colors, and reaches the eye in greater quantities, making the daytime sky look blue. This is known as Rayleigh scattering.
The nighttime sky seen from Earth is black because the part of Earth experiencing night is facing away from the Sun, the light of the Sun is blocked by the Earth, and there is no other bright nighttime source of light in the vicinity. So, there isn't enough light to cause Rayleigh scattering and make the sky blue.
I am so thankful to God who created us and everything we need--including atmosphere so that we can have a beautiful blue sky during the day and a black sky with twinkling stars at night!
Happy Thanksgiving!
Black Friday Crow Giveaway
I'm giving away one of my black (Friday) crow prints. This is a reproduction print of an original pen-and-ink drawing. The image area for framing is 5 1/4" x 5 5/16" and is printed on an 8 1/2" x 11" sheet of acid free, warm off-white paper. This is also the crow that is being used as set decoration on Charlie Sheen's TV show, Anger Management.
To Enter: Simply email me your name to: inkartist@knology.net. Please put Black Friday Crow in the subject line. I must receive your email by midnight this Friday, November 29th to be eligible. You must be 18 in order to enter.
Notification: The winner will be picked at random and will receive an email Monday morning and I will post the winner on my blog and social media sites.
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