Subspace was the medium used for long-range communications such as subspace radio, sub-space image transmitters and subspace transponders. It was a distinct dimension from realspace, like hyperspace and otherspace.[1]

Behind the scenes[]

In Star Trek, subspace is both the primary form of radio communication used by Starfleet, and the analog to Warp, which creates subspace bubbles around ships, allowing faster-than-light travel. Messages sent through subspace can bypass the physical light-speed limitations of real space, allowing for near-instantaneous communication in the Star Trek universe.

Subspace also appears in the Stargate series as the analog to the hyperspace dimension. Subspace has been seen as an element of faster-than-light travel on a number of occasions.


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