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Subspace is an integral part of the space-time continuum, distinct, yet coexistent with normal space. Subspace and normal space are confluenced together. However, in some regions an interfold layer forms between the two realms. (VOY: "Real Life") Subspace has an infinite number of domains. Geordi La Forge compared it with "...a huge honeycomb with an infinite number of cells". (TNG: "Schisms")

Tetryon particles are a form of subatomic particle which can only exist naturally in subspace. If they are released into normal space, they exhibit erratic properties. This can only occur when the fabric of subspace comes into contact with normal space in some manner.

Some species, such as the solanogen-based lifeforms, were indigenous to subspace. (TNG: "Schisms")

Exactly what subspace is has never been revealed on screen, though many theories, both fan-based and scientific, have been put forward. Explaining subspace would be hard, since it is used as a solution and cause of various problems throughout the series. It is implied to be the medium through which faster-than-light travel and communication is possible, similar to hyperspace.

Subspace physicsEdit

Subspace anomaliesEdit

See: Subspace anomaly

Subspace technology Edit

Faster-than-light technologyEdit

See: Speed of light

Subspace communicationEdit

See: Subspace communication


See: Propulsion

Subspace fieldsEdit

See: Subspace field

Subspace sensorsEdit

See: Flow sensor
See: Subspace harmonic monitor

Subspace weaponsEdit

See: Subspace weapon

Subspace transportationEdit

See: Transporter
See: Warp drive


de:Subraum fr:Subespace it:Subspazio ja:亜空間 nl:Subruimte pl:Podprzestrzeń

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