This article intervenes in feminist theories concerning the politics of care, reading this contested notion through its representation in an ‘artificial’ relationship between a human clone and a computer in the science fiction film Moon (dir. Duncan Jones, 2009). Drawing on Joan Tronto’s work (1993), I delineate a conventional, vernacular conception of care, which puts in place problematic, prescriptive roles in caring relationships. Then, reading Moon through Donna Haraway’s theorisation of companion species (2008) and what she terms the ‘touching’ of (...) material histories and contingencies, I show how these hierarchies may be unravelled. This figure of the caring computer represents a capacity for affective impact upon human subjects that is not normally ascribed to ‘emotionless’ technological subjects. It animates a disruption of the linear, instrumental relationships of power between humans and technologies by showing the ways in which ongoing processes of co-constitution are responsible for bringing each participant in the relationship into being. Care here is a manner of activating and making conspicuous those processes and can unravel, rather than prescribe, the roles which respective participants in such relationships are assigned. (shrink)