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
Return to Mars Return to Mars Return to Mars is a science fiction novel by Ben Bova. This novel is part of the Grand Tour series of novels. It was first published in 1999 and is a sequel to Ben Bova's novel "Mars". Navajo geologist Jamie Waterman returned to Earth as a hero, travelling the globe, giving speeches on Mars, and supporting a return voyage. Now six years later, Waterman gets to return to his beloved red planet, and to the mysterious dwelling in the Valles Marineris region. However, the second voyage has sponsorship not from governments, but from corporations, most notably from