I’m not sure if science fiction has the most cliches of any literary genre, but it’s sure got a pile of them.* Go ahead and think for a second, I bet you’ll come up with a few even if you’re not really into science fiction.
As a noob science fiction writer, my goal is to stand out by trying to avoid or invert as many cliches as possible without becoming contrary for the sake of contrariety. I’ve put a little bit of thought into this today and I figured I’d list a few ways that I’m trying to be a little different, while at the same time revealing some worldbuilding details that you might be interested in. I decided to go for the first cliches that popped into my head: warp drive (or FTL, whatever), the world government, and (blah) space as an ocean.