How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Jim Reilly Your Own Question
Jim Reilly
Jim Reilly, Attorney
Category: General
Satisfied Customers: 1805
Experience:  Licensed Attorney, Public Speaker, Honors Graduate USMA.
Type Your Question Here...
Jim Reilly is online now
A new question is answered every 9 seconds

why is the sky blue

Customer Question

why is the sky blue
Submitted: 6 years ago.
Category: General
Expert:  Jim Reilly replied 6 years ago.
Hello marc and welcome back to JustAnswer.

Actually, the sky isn't blue at all -- the atmosphere of the Earth is colorless. What makes it look blue is the effect the atmosphere has on the sunlight passing through it to the surface.

Sunlight, of course, contains the full spectrum of colors. Molecules of water and dust in the air scatter the blue in sunlight more than they scatter red or other colors. As a result, on a clear day, the sky looks blue because we see more of that blue light that is being scattered than any other color.

As the Sun sets, however, light coming to our eyes passes through a thicker layer of atmosphere, the light is filtered more and the blue light is scattered out and away from our sight and we see more red and orange colors. Remember that old sailor's saying: "Red sky at night, sailor's delight. Red sky in morning, sailor's warning!"

Thanks for asking your question here on JustAnswer. If you have any other questions, please let me know.
Jim Reilly and 26 other General Specialists are ready to help you

Related General Questions