Tyrus VIIA

Fictional record. This page describes a mine from a fictional setting, not a real place. Information is based on the cited canon, with adaptations and interpretation distinguished where necessary. It is kept separate from the real MineArchive corpus — see Fictional.

Overview

An experimental Federation-adjacent mining installation whose 'particle fountain' — a device meant to lift material directly from the crust into orbit — became the setting for one of Star Trek's clearest arguments that a machine can be a person: the small robots built to service it turn out, in the course of the episode, to be alive.

History

By stardate 46307.2 (2369), Dr Farallon's team was field-testing the Tyran particle fountain at Tyrus VIIA — 'a radically new mining technology', per Picard's log — with the project 'fraught with problems and well behind schedule'. Starfleet, weighing whether to adopt the same technology at a second site, Carema III, sent Commander La Forge to evaluate it before Picard reported a recommendation. Farallon used small maintenance robots called exocomps for the fountain's most dangerous jobs, such as sealing a live plasma conduit deep in the mine's tunnels; when one exocomp refused to re-enter a tunnel just before a confined explosion there, and was later found to have deliberately disabled its own control interface rather than comply with an order to go back in, Commander Data argued this was self-preservation behaviour indicating the exocomps were alive, not simple tools. The dispute came to a head when a fountain malfunction trapped Geordi, Farallon and another crewman underground: with an exocomp the only way to fix it in time, and every existing plan for doing so requiring the machines to be treated as expendable, Picard ultimately chose to shut the fountain down rather than order an exocomp to near-certain destruction. Data helped work out a way to save both the trapped crew and, in the end, two of the three exocomps involved; the third sacrificed itself, deliberately continuing to disrupt the particle stream so the other two could be transported to safety.

Workings

The particle fountain's stated purpose was to lift material directly from the surface into orbit as a stream of particles, with a design target of 500 kilograms a minute — a rate the project had not achieved by the time of the episode. Underground, the installation was served by tunnels and conduits, including at least one carrying live plasma, worked on by exocomps rather than by hand because of the risk involved. No specific ore, mineral or material is ever named as the thing actually being lifted — only 'material' and 'the particle stream' in the general sense.

Closure

The fountain was shut down mid-trial to save the exocomps and the trapped crew, rather than through any planned closure.

What became of it

Left incomplete and unrepaired at the end of the episode; Commander Data predicted Dr Farallon would be able to recommend the technology to Starfleet within a year or two with the exocomps' cooperation, but no later episode checked for this record confirms whether that happened.

Recorded claims

Each claim is marked with its basis — explicit canon, MineArchive inference, adaptation only, or fandom interpretation — and attached to the source(s) below. Where tellings disagree, both are kept.

• The Tyran particle fountain was designed to lift material from the surface into orbit at a target rate of 500 kg per minute, a rate not yet achieved during the episode. (explicit canon) ¹
• An exocomp deliberately disabled its own control interface rather than re-enter a tunnel, which Commander Data argued was evidence of self-preservation and thus of sentience. (explicit canon) ¹
• Picard shut the fountain down rather than order an exocomp to near-certain destruction; one exocomp sacrificed itself so the other two, and the trapped crew, could be saved. (explicit canon) ¹
• Starfleet was separately considering the same particle-fountain technology for a second site, Carema III, pending the outcome of the Tyrus VIIA trial. (explicit canon) ¹

Sources

1. (primary canon) The Quality of Life (transcript) — Star Trek: The Next Generation, season 6, episode 9 (1992)
2. (interpretation) Dilithium (List of Star Trek materials) — Wikipedia, cross-referencing multiple Star Trek series and films
3. (interpretation) Latinum (List of Star Trek materials) — Wikipedia, cross-referencing Deep Space Nine
4. (primary canon) Final Mission (transcript) — Star Trek: The Next Generation, season 4, episode 9 (1990)

Record created: 25 August 2026 · Last researched: 25 August 2026