As space scientists and engineers plan new missions to Mars and other planets in our solar system, they will face critical questions about the potential for biological contamination of planetary surfaces. In a society ...

The management and regulation of high-risk technologies need to be based on an understanding of the ways in which people think about risk. Without such understanding, well-intended laws and policies may be ineffective, or ...

Accurate shape perception is critical for object perception, identification, manipulation, and recreation. Humans are capable of making judgements of both objective (physical) and projective (retinal) shape. Objective ...