Walter Benjamin is best known for his essay ‘The Work of Art in the Age of Mechanical Reproduction’, (Benjamin, 1968b) in which he argues that film and other mechanical technologies are destroying the aura that had belonged to traditional art. In this article we apply Benjamin’s concept of aura to new (digital) media, and in particular to ‘mixed reality’, a group of technologies that blend computer-generated visual, aural, and textual information into the user’s physical environment. We argue that mixed reality increases the options for designer-artists and apparently allows the invocation of aura in new ways. Our culture’s pursuit of auratic experience remains problematic in mixed reality as it was for Benjamin in the case of film. New media maintain aura in a permanent state of oscillation or crisis, and this crisis is a key to understanding new media.