Human mission to Mars propellant from the Martian Atmosphere. This proposal drew on concepts developed by the former "Case for Mars" conference series. Over the next decade, Zubrin developed it into a mission concept, Mars Direct, which he presented in a book, "The Case for Mars" (1996). The mission is advocated by the Mars Society, which Zubrin founded in 1998, as practical and affordable. In 1991 in Toulouse, France, the International Space University studied an international human Mars mission. They proposed a crew of 8 traveling to Mars in a nuclear-powered vessel with artificial gravity provided by rotation. On the surface, 40 tonne habitats
The Race (Worldwar) was growing. Several trips had been taken aboard reusable space shuttles to space and to the Moon and Mars. The partial occupation also had a significant effect on culture and society in general. Ginger, discovered to have a narcotic effect on the Race, is widely grown and stored by various governments. Culturally, humans try to take the occupation in stride, e.g. a song by Spike Jones, referring to Jones' song "Der Fuehrer's Face" from the real-world timeline: The Race (Worldwar) The Race refers to the fictional alien invaders of Harry Turtledove's "Worldwar" tetralogy, "Colonization" trilogy and "Homeward Bound". The aliens,