Mars: Make It a One-Way Trip

Scientific American by Philip Yam Sept 2, 2009
Landing humans on Mars is a completely achievable feat with current technology—if you are okay with the idea of a one-way ticket, points out physicist and Scientific American columnist Lawrence Krauss in an op-ed in yesterday's New York Times. The problem today isn't the launch capabilities or the guidance systems or the navigation. It is the energetic particles from the sun, which can rip apart DNA. Space travelers returning home from a Mars mission would soon die from this radiation poisoning, if they managed to survive the experience at all. A protective shield would simply be too massive to…
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