One of the greatest challenges when writing sci-fi is the world building and coming up with the rich details that can make the world feel lived-in, alive or if the story requires it desolate, grimiy and dilapitated.

Sometimes it can be a real struggle to grasp the visual attributes of the world or a scene.

The linked resources here could serve as basis and jump-off point for your imagination.

(please report broken links if you find any)