Mars trip would deliver big radiation dose

Mars trip would deliver big radiation dose

Curiosity instrument confirms expectation of major exposures

By Cristy Gelling, 16:49 PM June 6, 2013

Astronauts making the journey to and from Mars would face many new and uncertain dangers. Fortunately, the Mars rover Curiosity has reduced uncertainty about one of them: radiation exposure.

Measurements of radiation reaching the shielded interior of the spacecraft that carried Curiosity to Mars indicate that an astronaut on a yearlong round-trip would be exposed to around two-thirds of the career radiation limit that some space agencies set. Any time spent on the planet and outside the spacec...

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