“ “...Astronauts could endure a long-term, roundtrip Mars mission without receiving a worryingly high radiation dose, new results from NASA's Mars rover Curiosity suggest. A mission consisting of a 180-day outbound cruise, a 600-day stay on Mars and another 180-day flight back to Earth would expose an astronaut to a total radiation dose of about 1.1 sieverts (units of radiation) if it launched now, according to measurements by Curiosity's Radiation Assessment Detector instrument, or RAD. RAD has found radiation levels on the Martian surface to be comparable to those experienced by astronauts in low-Earth orbit. A person ambling around the Red Planet would receive an average dose of about 0.7 millisieverts per day, while astronauts aboard the International Space Station experience an average daily dose between 0.4 and 1.0 millisieverts, “ well takes the possibility of astronauts dying from radiation out of the picture. As for dealing with the difference in gravity it’s a 6 month trip to mars so they would probably be able to acclimate to the 0.3 gs on Mars after a short amount of time, honestly we really have no knowledge on whether or not your body would atrify in lower gravity. We do know the change would not disable any of the astronauts it usually only takes a few days to acclimate to the shift in gravity. Where do you get this over exaggerated information that is designed to do nothing except fear monger.