There's a comment from one of the side characters to the effect of "does the plot really matter?" Because it doesn't, really. The heroes save whatever they set out to save, shit blows up (in Holo-3D!), and yay.

There aren't, really. They have some experience on moons & asteroids, but most of space is in man-made stations (except the moon and Mars, where they live in dome habitats). But that doesn't mean there can't be fiction about it :D