Graduate student builds NASA robot that assembles satellites without cameras

Sarah Downs's career path reflects a deliberate blend of passion and pragmatism. Inspired in her teens by NASA's Mars rovers, she pursued robotics with the understanding that it could provide both intellectual fulfillment and financial security for her family—a priority that crystallized after her father's death in 2015. Her engineering education followed a structured trajectory: she participated in First Lego League and First Robotics as a teenager, completed a dual-enrollment program at Tulsa Tech while in high school, and then pursued electrical engineering at the University of Tulsa, drawn to small systems and electrical components.

Her graduate work demonstrates how robotics problems are often constrained by harsh physical realities. The peg-in-hole task—inserting an antenna into a satellite opening—is conceptually simple but becomes extraordinarily complex in the zero-gravity environment of space, where even small forces from a robotic arm can cause the satellite to drift. By eliminating dependence on cameras, which are vulnerable to malfunction and communication delays in orbit, Downs's force-sensing approach addresses a genuine operational gap. Her work at Texas A&M's Robotics and Automation Design Lab, which specializes in machines for extreme environments and collaborates with NASA, positions her within a research ecosystem directly aligned with her stated goal of eventually working on Mars rovers and space station robotic systems.