In 2155, The Artemis Intergalatic Studies Satelite or The Artemis Station was built by Billionaire CEO Alexander Christianson of Artemis Incorporated. In 2186 CE, shortly after having made, what they announced, a major discovery in the "Geth Theory", the station vanished from Citadel Space and all known evidence of its existence disappeared. Though, in some places in the Terminus Systems there are still signs of it's existance, though no one has discovered it.