Castra Astra (Superpowers)

The Castrum Astri (Star Fortress or Fortress of the Sky) is the first man-made satellite to be designed for human habitation. Though it was only completed 21 December 1947, the plans for the Fort were first made back at the start of the Artemis Program in 1932. By 1936 the overall design was made for the station but several key engineering hurdles still had to be overcome before construction was possible, most important of these being whether the process of combining pressurized modules would work properly. By 1943 all the details of the station had been worked out, but funding for the manned mission to the moon had top priority, and so work on the Castrum was rather slow.