@not4u2no3 @BenMonroe1 @BruceyXRP @konstructivizm You are correct, but you (well, someone with the right equipment) can shine a laser and get a return from the laser reflectors left behind.
@不是4U2NO3@BenMonroe1@BruceyXRP@konstructivizm你说得对，但你（嗯，有合适设备的人）可以照射激光，并从留下的激光反射器中获得回报。