Crews traveling to Mars and back with today’s technology will face a 5% increase in their chances of developing cancer later in life, based on new data from NASA’s Curiosity rover released at the International Geophysical Union in San Francisco Dec. 9. Data from Curiosity’s Radiation Assessment Detector (RAD) instrument allowed scientists to calculate a crew radiation dose over a 500-day roundtrip mission to Mars of about 1,000 millisieverts, including earlier data the RAD instrument ...

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