Hi, I too love Scifi
I played once in an adapted Traveler campain and fell in love with a race of humanoids called Ko'Secti which were created by our GM
They were a warlike race but not barbaric, their races most unusual trait was that 70+ females were born for each male birth so naturaly females were in charge.
Their world's gravity was 2.4 standard and it took 3.7 standard years for their planet to circle their sun.
While they had high tech weapons they prefered to use arcahic weapons like sword and bows and were driven by an all encompassing since of honor
Sorry for rambling, boredom an nostalgia