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Why is the sky not blue on Mars?

Best Answers

The answers mentioning Rayleigh's scattering and Mie Scattering to explain the sandy color of martian sky are correct. But the statement that sky is not blue on mars is not entirely true. read more

But the statement that sky is not blue on mars is not entirely true. The general color of the sky on mars is "butterscotch", resembling a shade like this: But, lets not forget the fact the water does not exist only in liquid form on mars. read more

On Earth our own atmosphere scatters blue light creating the red and orange shades that light up the sky at sun down. It is not the first time Nasa has shown the world what a sunset on Mars would look like and it released a longer video in 2010. read more

When you do that, then often the sky goes blue, not surprisingly. Especially with the "White balanced" pictures. Mars does also get blue sunrises and sunsets, then you just see a patch of blue in the region of the sky towards the setting sun. read more

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Further Research

How Mars can have a blue sunset
briankoberlein.com

Why does Mars have a sky?
www.thenakedscientists.com