News & AnalysisPLANETARY EXPLORATION

Radiation Will Make Astronauts' Trip to Mars Even Riskier

Science  31 May 2013:
Vol. 340, Issue 6136, pp. 1031
DOI: 10.1126/science.340.6136.1031

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Summary

Most robotic missions to Mars have failed, but future astronauts headed for the Red Planet will have more than an imagined martian jinx to worry about. Measurements that the Curiosity rover made en route to its touchdown on Mars last August show that radiation in deep space could pose a significant—if poorly understood—threat to human space travelers.