The blue sky is the sun's light that is spread out farther away from the sun itself. All that blue is still light from the sun, but just farther out and spread out. It may be due to some of the chemicals in the atmosphere that gives it the color, or the angle at which the rays hit our eyes. At sunset the colors change because of the angle (I think).
In space astronauts no longer have an atmosphere to look through, so the sun's rays don't get spread out as much through air (no air in space) so the sun looks just like any other star, except really bright. Also, that is why stars twinkle on Earth but not in space (no atmosphere for the light to travel through).
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I'm busy
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Hah!
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Fuck 'em all!
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