Sunsets on Mars are blue.
“The colors come from the fact that the very fine dust is just the right size so that blue light penetrates the atmosphere slightly more efficiently,” said Mark Lemmon, a science team member of NASA’s Curiosity Mars rover mission. “When the blue light scatters off the dust, it stays closer to the direction of the sun than the light of other colors does.”
Today's version really, REALLY sucks- it doesn't have much of anything.