The location where the small flying ship arrived was not where the "Sagali" civilization's biological space mothership group entered the star system. It was slightly off but still within the approximate range, so two types of space telescopes were prepared, not just one set, spanning several light seconds, attempting to increase the search probability.
The positions of celestial bodies in the cosmic void are all in relative motion; carving a mark on a boat to locate the sword is most unwise, as losing even a millimeter can result in errors of thousands of miles.
Having eaten and drunk his fill, Heseman Brown once again activated his psi skill, continuously moving the whole small flying ship along the outer side of the asteroid belt.
Hours later, thirty pairs of space telescopes were successfully deployed, encircling about seven light seconds of the outer asteroid belt, which is almost a negligible fraction of the entire ring-shaped asteroid belt.
