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About

Brian C. Williams is a pioneering researcher in artificial intelligence and autonomous systems, whose work has fundamentally shaped how spacecraft, robots, and vehicles reason, plan, and recover from failure in real-world environments. Best known for his groundbreaking contributions to **model-based autonomy**, Williams co-developed the Remote Agent system — the first AI system to autonomously control a NASA spacecraft in flight — a landmark achievement that earned over 700 citations and reshaped thinking about onboard intelligence in space exploration. At the core of his research is the idea that autonomous systems should reason from rich internal models of themselves and their environment, enabling robust fault detection, diagnosis, and goal-directed execution without human intervention. His work on conflict-directed A* search (159 citations) advanced model-based embedded systems, while his research on temporal plan execution extended these ideas to time-critical, multi-vehicle missions including UAVs and Mars rover networks. Williams has consistently pushed the frontier of autonomy across decades — from cooperative spacecraft constellations in the 1990s to stochastic uncertainty propagation in nonlinear systems in 2021. His career represents a sustained and influential effort to make autonomous systems not just capable, but genuinely trustworthy in high-stakes environments.