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Vacuum is primarily composed of next to nothing and is synonymous with the Interstellar Medium.

Description (Specifications)[edit]

Vacuum Atmospheres requires a vacc suit. The atmosphere has a pressure of less than 0.001 atmospheres, which requires the use of a vacc suit.

Small Worlds[edit]

Worlds of Size 1 or less are asteroids, orbital complexes, space stations, and other small satellites, and are much too small to retain a breathable atmosphere. They are uninhabitable by most forms of life without technological support. [1]

History & Background (Dossier)[edit]

Airless Worlds: A great many worlds in Charted Space have an Atmosphere type of 0 (Vacuum) or 1 (Trace).

  • Although a trace atmosphere denotes a thin veneer of gasses around a world (such as Mercury), it is of such barely measurable pressures that it may as well be a vacuum. Animal and plant life is non-existent on an airless world, although exotic and incredibly rare examples of vacuum life might exist (...and certainly be worthy of an IISS Scout mission).
  • Mainstream sophonts must resort to living in bubble cities, underground settlements and other artificial, sealed environments. It can be difficult for a scout to differentiate these vacuum habitats. Try to take note of distinctive features at these settlements such as interesting geographical locations: at the entrance to a huge mine, straddling a small meteorite crater, along the walls of a canyon, inside old lava tubes, in the caldera of an extinct volcano, inside a network of vast, natural caves ... and so on. [2]

References & contributors (Sources)[edit]

This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Far Future Enterprises or by permission of the author. The page history lists all of the contributions.