posted on Oct, 4 2012 @ 08:34 PM
The most likely reason has to do with the refraction of light. The sky is blue because the tiny dust particles in the atmosphere are so small they
reflect blue light so that is what hue our eyes pick up. The sky isn't actually "blue" at all, it has no color to speak of. We see the lightwaves
that are reflected. When you see a rainbow, it's because of the moisture in the air refracting the light and dispersing it like a prism.
The most likely explanation is some type of dust particle or moisture in the atmosphere in such an arrangement that the light reflected gave off that
color. The "beam" is most likely due to the same reason that sunbeams stay uniform. The light is passing through clouds in the atmosphere and only a
small "beam" of light makes it through the barrier and seems intensified.
This is a reasonable explanation and the most likely. I'm not saying it's the only explanation or even the correct one, but it is the one that is
If there is another reason, I hope you are able to discover what that reason is.