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
Dora the Explorer: Journey to the Purple Planet a level. When Dora and Boots are looking up at outer space, a flying saucer containing five aliens (“Flinky”, “Inky”, “Plinky”, “Dinky” and “Al”) from the purple planet, lands on Earth. However, the saucer falls apart and Dora and Boots have to get the aliens back to the Purple Planet. Isa has a rocket ship that Dora and Boots can borrow, which is located on top of the tall mountain. To get there, Dora and Boots first need to cross the Turtle River, then get past the Icky Sticky Sand, then swing over Crocodile Lake and finally climb up to