The AI Observer Robots, which used the alien plant’s special alloy, were also fitted with a creator’s particle generator and isolator so that the alien civilization couldn’t detect them other than by shining lights on them.
Similarly, to avoid detection and leaking of technological information, the normal fuel propeller and more high tech particle acceleration were unusable. Instead, the anti-gravity system was used for mobility… Using the Hope as a gravitational anchor, with its pull and push force, the robots could be moved to anywhere in space. Of course, this meant that the Hope had to move as well. However, compared to the robots’ size and mass, the movement was barely discernible. Furthermore, the Hope was already in a floating state, so a small movement was to be expected. It would be fine if the robots were noticed as well, because it would make the alien civilization more cautious.
