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More on Mars
Dartmouth Medical School, Lebanon, NHEmail: Jay Buckey - jay.buckey@dartmouth.edu The Scientist 2005, 19(12):8
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I appreciate S. Fred Singer's comments[1]
on my article, "Next Stop, Mars."[2]
He is correct that a focus on improved propulsion could reduce travel time to Mars and therefore radiation exposure. Also, his suggestion to use low atomic weight materials within shields is a time-honored and reasonable approach – although these shields would need to be quite thick to reduce radiation to terrestrial levels. I disagree, however, that magnetic shielding would not be effective.
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