Not sure if its a bug or intended to be so but,
The Space Scanner and the Research Telescope can not see past Window Tile made from glass nor diamond.
If its intended then this thread can be closed.
Steps to Reproduce
Place a Space Scanner or Research Telescope. (in open space) Add power to buildings. Place a line from left to right Window Tile above the buildings. (in open space)
This issue has not been confirmed by a developer yet.