Line scan camera image processing for train photography

These have a beautiful aesthetic quality to them that vaguely reminds me of old space photos. I wonder why the aesthetics seem so similar - I couldn't find any hints in the processing so perhaps it's from the way the line scan camera's sensor works?

Many satellite cameras have line scan sensors or push broom sensors (https://en.wikipedia.org/wiki/Push_broom_scanner) and make their image as they move in their orbit.