Memory Alpha
Memory Alpha
Multiple realities
(covers information from several alternate timelines)
Subspace corridor

Enterprise enters a subspace corridor

A subspace corridor is a shortcut through space, which can allow a starship to traverse great distances otherwise unachievable with traditional warp drive.

In the 22nd century there was a subspace corridor in the Delphic Expanse, extending 11.6 light years, from a nebula controlled by the Kovaalans, to not far from the Xindi Council planet. In February 2154, Enterprise NX-01 entered this corridor in an attempt to quickly travel to the Council planet. However, due to battle damage sustained in combat with the Kovaalans, Enterprise's impulse manifold produced a particle wake which caused the corridor to shift in time. Enterprise emerged in the year 2037, and the crew quickly realized that, due to the corridor's one-way nature, there was no way for them to return to their own time. Enterprise became a generational ship, and the crew's descendants were eventually able to change history by intercepting their counterparts in 2154, and assisting them in making modifications which corrected the damage to the impulse manifold. This allowed Enterprise to safely pass through the corridor without traveling back in time. (ENT: "")

Underspace corridor


In the Delta Quadrant, the Vaadwaur used a vast network of subspace corridors called "Underspace" to aggressively expand their territory, until they were defeated (in the 15th century). In 2376, the starship USS Voyager was accidentally pulled into Underspace. The ship was subsequently forced out by the Turei, a species that had appropriated the corridors; they targeted Voyager's shields with a resonance pulse, altering it's shield harmonics and returning it to normal space. In five minutes, Voyager traveled two hundred light years. (VOY: "Dragon's Teeth")

In 2377, Reginald Barclay speculated that a group of Ferengi may have found either a wormhole or a subspace corridor to bring Voyager to the Alpha Quadrant, before realizing that they were planning to utilize a geodesic fold. (VOY: "Inside Man")

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