Oh, the blue sunsets of Mars!

Oh, the blue sunsets of Mars!  As seen by Curiosity, in the colors you'd see if you were there.

I remember reading a science fiction story from the '60s or '70s that postulated blue sunrises and sunsets on Mars, complete with the reasons why.  At the time, I thought of that is the speculation of an author who probably wasn't all that well-informed about science.  There was plenty of that (and still is) in science fiction, but there were (and are) also plenty of authors who actually do have a good science background, or who are scientists.  Isaac Asimov is the canonical example of the latter, and he also wrote several hundred non-fiction books to popularize science...