Stuart Levy is a research programmer, geek, and systems administrator at the Advanced Visualization Lab at NCSA. He enjoys data conversion, and is the current maintainer of the group’s Virtual Director software and related tools, including partiview. He is passionate about physics and astronomy, and was happy to be able to learn about geospatial data for this project. Among past contributions that have appeared in SIGGRAPH’s Electronic Theater, his favorite credit was as “technical shepherd.”