Question:
Why is the sky sometimes red at night and is it similiar to a blue
sky during the day?
Replies:
No, the red sky you see at dusk is the result of dust and smoke
particles in the air which absorb blue light but allow red light to pass
through.. well, I guess in a way it's similar, since the blue sky you see during
the day is the result of the water in the air absorbing RED light and allowing B BLUE light to pass through.
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