Originally Posted by
Whifflingpin
1 - Väinö Linna – “Here beneath the North Star” - Finnish trilogy, including an account of the civil war, from the "red" side. All right, clearly not, but if your clue were a crossword clue, the title would be something like "Lonely Astronomers of the Red Planet" and I can't think of any one like that.
6 again: How about Robert Silverberg - "Lord Valentine's Castle" or Philip K. Dick - "Man in High Castle." Both of these are notable works in the genres you say you favour.