List of Star Trek regions of space

Several films and episodes of the science fiction franchise Star Trek are set in distinct regions of space. Some of these fictional locations exhibit anomalous physical properties; others are defined as sensitive buffer zones under various fictional political accords.

This list describes some of the more significant settings for Star Trek films or story arcs over multiple television episodes.

The Badlands comprise an area of space that appears (or is referenced) in episodes of Star Trek: Deep Space Nine and Star Trek: Voyager.

Located in Star Trek's Alpha Quadrant, the Badlands are characterized by constant plasma storms and funnel clouds. The Maquis use it in several episodes as a meeting or hiding place because of its treacherous navigation. It is also known to have a few planets hidden within the clouds and nebulae.

In "Caretaker", the pilot episode of Star Trek: Voyager, the titular starship pursues a Maquis ship into the Badlands before being teleported to the Delta Quadrant.

The Badlands are also mentioned in the computer game Star Trek: Armada II, where the Borg build up forces in that area close to the Federation.

In the fictional Star Trek universe, the Bajoran wormhole is a spatial anomaly located within 160,000,000 kilometres (99,000,000 mi) (DS9 S1Ep2: "Emissary (Part 2)") of the planet Bajor. It appears as an aperture of swirling golden-white light surrounded by blue clouds, which appears whenever a vessel approaches or exits from it and disappears again afterwards. The wormhole can only be traversed by ships traveling at impulse (sub-light speed) velocities.

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