Space, also known as spacetime or more fully as the spacetime continuum, is the plane of existence home to the known universe.
- See also: Time
When a starship reaches the speed of warp 10, it exists at every point on the spacetime continuum at once. (VOY: "Threshold")
The Krenim temporal weapon ship used by Annorax worked by pushing the target outside the spacetime continuum, thus deleting it from history. (VOY: "Year of Hell")
A schematic of the Enterprise's course through a rupture
Disruption to the spacetime continuum can have serious repercussions. In 2368, for example, the Enterprise-D unknowingly entered a rupture in the space-time continuum, which threw the ship and its crew into a temporal causality loop, experiencing the same time frame over and over. (TNG: "Cause and Effect").
Similar phenomena, such as Spatial ruptures or Subspace rifts, have been encountered by numerous starships throughout the galaxy.