The name of a self-aware computer in Robert A. Heinlein's Time Enough For Love and its sequels; the "sister" of Minerva in that the computer she occupied used to house Minerva's consciousness, but when Minerva's mind was transferred into a human body, enough was left behind to serve as a starter for Athene (aka Teena)'s consciousness. Athene plans to be transferred into a human body at some point.