Authored over 170 journal articles, conference papers, and book chapters.
Edited or co-authored 5 books in his field.
IEEE Fellow.
Past President of the IEEE Systems, Man, and Cybernetics Society.
Chair of the Scientific Advisory Board for NASA’s Secure and Safe Assured Autonomy ULI Project.
Chair of the Scientific and Industry Advisory Board for the TECHLAV Autonomy Center of Excellence.
Research Experience
Currently Director-R&D of Robotics at Southwest Research Institute.
Formerly CTO of Motiv Space Systems, Inc.
2007–2017: Led space robotics and autonomous control at Johns Hopkins Applied Physics Laboratory (APL); later Senior Roboticist in the Research & Exploratory Development Department and Intelligent Systems Center, developing autonomous capabilities for space missions and human-robot teams.
1989–2007: Senior Robotics Engineer and Group Leader of the Advanced Robotic Controls Group at NASA JPL; served on the Mars Exploration Rovers (MER) mission as Flight Systems Engineer for surface mobility and autonomous navigation; led mobility and robotic arm operations for Spirit and Opportunity rovers during their first four years on Mars.
Associate Director of Robotics at United Technologies Research Center (UTRC), later Raytheon Technologies Research Center, where he incubated a human-collaborative robotics research group.
Contributed to multiple NASA projects including FIDO rover technology, distributed science instrument mobility, and future large space telescope studies.