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Thomas Horsch is a leading figure in robotic motion planning, with a career dedicated to solving the fundamental challenge of collision avoidance for complex, high-degree-of-freedom systems. His most influential work, "Motion planning with many degrees of freedom-random reflections at C-space obstacles" (2002, 66 citations), introduced a pioneering algorithm that bypasses the computationally expensive step of explicitly constructing configuration space obstacles. Instead, it uses a graph-based approach with random reflections to efficiently find collision-free paths, a breakthrough for robots with many joints. Horsch further advanced the field with his work on "Cartesian spline interpolation for industrial robots" (1998, 50 citations), which provided smooth, precise trajectory generation for manufacturing applications. He also explored innovative geometric representations, as seen in "Local motion planning avoiding obstacles with dual quaternions" (2003, 13 citations), where he used dual quaternion algebra to model virtual contacts between a robot and its environment. His early German-language publication on fast collision-avoiding path planning for a 6-DOF robot (1991) laid the groundwork for his career. With over 140 cumulative citations, Horsch’s contributions remain essential for researchers in robotics, automation, and path planning, offering elegant solutions to the core problem of moving robots safely through cluttered spaces.