I found it strange that the planets/moons in the background have absolutely no light casting on them. For example, look at the gas giants in this picture. And at night, the planets/moons are pitch black. So what if we have the planets/moons have "phases?" (or at least a visible shadow on them).
This would depend on the location of the sun and moons/planets that orbit it. But yeah, being in daytime and seeing a fully illuminated moon in the direction of the sun defies logic.
It would add more realism to the game, and this would be a nice feature to have. --Kirby approves, and will not eat you.--
Starbound Logic is different from real logic, but let's pull that logic in, beat it till it bleeds, and put this logic in instead.
I don't see the difference in logic aside from the majority of the blocks lacking physics, but that's in every game with block-based building that I've played.