30 May '13, 6pm

Mars Trips Pose Radiation Risk

Mars Trips Pose Radiation Risk

There are a few caveats to the new results. Protons from the sun amounted to just 5 percent of the radiation dose measured during Curiosity's cruise to the planet, but the mission coincided with a relatively inactive period of the sun's 11-year cycle . The solar contribution, the paper says, could potentially be "many times larger in a different time frame." Then, of course, there's the radiation astronauts will be exposed to while on the Martian surface, which the team has yet to calculate. Since Mars has considerably less atmospheric and magnetic shielding than the Earth, the flux there could also be quite high.

Full article: http://spectrum.ieee.org/tech-talk/aerospace/space-flight...

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