Visuospatial thinking is a critical component of cognition in the Science Technology Engineering and Mathematics (STEM) domains. Across all STEM disciplines, experts reason about spatial relationships and transformation of those relationships. The spatial information that they consider varies substantially in scale, from small molecules to planetary objects. It also varies in complexity, from basic geometric shapes to the dynamic motion of particles in three-dimensional space. In the spatial thinking lab, we study the nature of spatial thinking in STEM disciplines, and how success in these disciplines is related to measures of spatial ability and visuospatial working memory.