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About

Stephen Ransom is a researcher whose work lies at the critical intersection of planetary robotics and geotechnical engineering, focusing on how rovers can safely and autonomously navigate extraterrestrial terrains. His primary research areas include terrain trafficability analysis, soil mechanical property identification, and human-robot collaboration for space exploration. Ransom’s most significant contribution is his comprehensive survey on terrain trafficability for planetary rovers, which has garnered 83 citations and serves as a foundational reference for researchers designing autonomous navigation systems for the Moon and Mars. He also developed multi-level soil sensing systems to identify safe trafficability zones, addressing the very real challenges that led to the demise of NASA’s Spirit rover. Notably, Ransom contributed to the Moonwalk project, simulating human-robot collaboration mission scenarios that bridge the gap between astronauts and robotic assistants in lunar-like environments. His work on safe long-range travel through forward sensing further pushes the boundaries of autonomous rover operations, aiming to reduce reliance on daily human planning. Through these efforts, Ransom has helped lay the groundwork for more resilient, self-sufficient exploration of other worlds.