Asgard (Stargate)
The Asgard are a highly advanced, fictional extraterrestrial race in the science fiction series Stargate SG-1 and Stargate Atlantis. They are first mentioned in the episode "Thor's Hammer", and first seen in "Thor's Chariot". In the series, the Asgard gave rise to Norse mythology on Earth, as well as accounts of the Roswell "Greys". Due to their technological prowess, the Asgard are critical allies in Earth's fight against the Goa'uld, and later the Ori. The Asgard characters on the show are realized through a combination of puppets and computer-generated imagery.
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