What does SGA mean in Science Fiction?

Stargate Atlantis

Stargate Atlantis (usually stylized in all caps and often abbreviated SGA) is an adventure and military science fiction television series and part of MGM's Stargate franchise. The show was created by Brad Wright and Robert C. Cooper as a spin-off series of Stargate SG-1, which was created by Wright and Jonathan Glassner and was itself based on the feature film Stargate (1994). All five seasons of Stargate Atlantis were broadcast by the Sci-Fi Channel in the United States and The Movie Network in Canada. The show premiered on July 16, 2004; its final episode aired on January 9, 2009. The series was filmed in and around Vancouver, British Columbia, Canada. The story of Stargate Atlantis follows the events of Stargate SG-1's seventh season finale episode "Lost City" and eighth season premiere episode "New Order", in which the cast of that series discovered an Antarctic outpost created by the alien race known as the Ancients. In the pilot episode "Rising", Dr. Daniel Jackson discovers the location of Atlantis, the legendary city created by the Ancients, and Stargate Command sends an international team to investigate it. The series was a ratings success for the Sci Fi Channel, and was particularly popular in Europe and Australia. Although it received little critical response, Stargate Atlantis was honored with numerous awards and award nominations in its five-season run. After Stargate Atlantis was cancelled, the show's co-creators began working on the already-conceptualized Stargate Universe which the network had approved to have a bigger budget, be less mythology-dependent, and have more focus on character development; Stargate Universe premiered on October 2, 2009, and was cancelled after two seasons. Merchandise for Stargate Atlantis includes games and toys, print media, and an original audio series. With the cancellation of Stargate Universe, the intended direct-to-DVD Stargate Atlantis movie, entitled Stargate: Extinction, was also cancelled.

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