I do sci-fi illustrations all the time, and am also constantly imagining the sort of movies, games and comics that this art would be used in. I have even gone as far as to write my own sci-fi role-playing games and novels.
I have also done some animations and designed and rendered enough 3D spaceship meshes and illustrations to populate an entire deep space fleet.
A lot of the more advanced, cutting-edge thinking in sci-fi comes from fiction, however, and I try to stay abreast of what is going on. When I read a particularly good piece of space opera, I will of-course be recommending it here.I'll also be shamelessly promoting every new book I write as it is published.
The sci-fi books I am writing belong to a series called Dark Galaxy that starts with Galaxy Dog. Here are the first two lines of Galaxy Dog blurb, so you can get a feel of the kind of thing these books are:
What starts as an ordinary invasion of an alien planet brings to light an ancient archeological site of huge importance. A young man called Knave makes a life-changing discovery there and rises from a lowly position as an infantry trooper to become a player among the powers of the galaxy.
The entire series is ripsnorting space opera in the style of Doctor Who and Blake's 7, and they are available to buy from Amazon. Just click the link and take a look.