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Memory Alpha

Memory Alpha is a collaborative project to create the most definitive, accurate, and accessible encyclopedia and reference for everything related to Star Trek. The English-language Memory Alpha started in November 2003, and currently consists of 56,832 articles. If this is your first visit, please read an introduction to Memory Alpha.


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Warning: Memory Alpha contains spoilers!
Star Trek: Discovery
Star Trek: Lower Decks
Star Trek: Strange New Worlds
Star Trek: Prodigy
Upcoming productions: Star Trek: Starfleet AcademyStar Trek: Section 31
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Interactive timeline

With the Star Trek franchise growing faster than ever, this interactive video timeline will serve as a springboard for fans, young and old, to experience how Star Trek history fits together. Styled to mimic the LCARS interface, a simple click through the timeline will introduce you to each era with a video overview. Here you will discover key plot points of each of the series and movies set during that time. You also have the option to dive deeper in each subject by bringing up articles directly from within the video. Click below to discover more information about Memory Alpha in a unique way!

A Memory Alpha - Fandom collaboration, this interactive timeline aims to guide you through all the various ships and captains along with where they fall in Trek history.
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Latest news

26 February 2024
Michael Barrier, who played DeSalle in Star Trek: The Original Series, passed away on 26 February 2024 at the age of 90. [1]
25 February 2024
Charles Dierkop, who played Morla in the Star Trek: The Original Series episode TOS: "Wolf in the Fold", passed away on 24 February 2024, at the age of 87. [2]
25 February 2024
Kenneth Mitchell, who played Kol, Kol-Sha, Tenavik, and Aurellio in Star Trek: Discovery, passed away on 24 February 2024, at the age of 49. [3]
Upcoming episodes/filmsUpcoming merchandiseToday in Trek history

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Featured article

USS Enterprise-D saucer separation

Saucer separation on a Galaxy-class starship

Saucer separation was an emergency maneuver performed on some Federation starships involving the complete disconnection of the primary hull and the secondary hull. During the 23rd century, separation was a one-time only event used only in a catastrophic emergency; the two sections could not reconnect easily following a separation.

In the 24th century, some starship classes were designed to routinely separate into one or more components. The procedure itself became more common and tactical, as well as emergency, uses became standard procedure. By this period, separation technology had advanced sufficiently to be performed at warp speeds. The procedure was extremely risky, with no margin for error; partially due to this, a high-warp separation was never attempted prior to 2364.

Picture of the Day

Borg aboard enterprise, 2153

The Borg, after being found in the arctic on Earth, regenerate and try to take over Enterprise in 2153.

The Borg, after being found in the arctic on Earth, regenerate and try to take over Enterprise in 2153.
(ENT: "Regeneration")
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See Memory Alpha: Copyrights for more information.
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