Hyperspace
From Memory Alpha, the free Star Trek reference.
Hyperspace refers to a location in a zero-gravity environment.
A hyperspace physics test was on the Starfleet Academy entrance exam. (TNG: "Coming of Age")
In 2364, Geordi La Forge attempted to tell a joke to Data, involving a person staggering as he walks up to a girl. The punchline of that joke was "just try that in hyperspace!" (TNG: "Conspiracy")
- Hyperspace is a defunct reference to a fourth spatial dimension used during the ninteenth century. It has been popularized as a subspace-like dimension in various Isaac Asimov stories, Larry Niven's "Known Space" series, and in the Star Wars film series.
