The USS Pollux was a Federation science vessel operated by Starfleet in the 24th century.

In an alternate timeline, the Pollux was destroyed by the aftereffects of a time wave, generated by the Borg of the distant future that were attempting to assimilate their own history. Before her destruction, the Pollux was able to send out a distress call which was received by the USS Courageous.

This timeline was averted when Captain Jean-Luc Picard of the USS Enterprise-E traveled back in time to 2364 and prevented the assimilation of the unnamed human that was destined to formulate the time wave strategy. (TNG: "Alien Spotlight: The Borg")

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