Mars to Stay it is assumed the planet will be a magnet for settlers as wage costs will be high. Because of the labor shortage on Mars and its subsequent high pay-scale, Martian civilization and the value placed upon each individual's productivity is proposed as a future engine of both technological and social advancement. In the fifth chapter of "Mars Direct", Zubrin addresses the idea that radiation and zero-gravity are unduly hazardous. He claims cancer rates "do" increase for astronauts who have spent extensive time in space, but only marginally. Similarly, while zero-gravity presents challenges, near total recovery of musculature and immune system
Space Exploration Alliance of establishing a permanent lunar base before follow-on efforts are made to move on to the planet Mars and beyond. The organizations involved in supporting the Space Exploration Alliance include: Collectively these groups total almost one million Americans as members or as employees of member companies. The first goal of the SEA was to work toward receiving broad Congressional support for the new national Vision for Space Exploration outside low Earth orbit, which the SEA refers to as "Moon, Mars and Beyond". The SEA began their effort by working together on a "Moon-Mars Blitz" campaign on Capitol Hill in Washington,