NASA’s Curiosity Mars rover documented itself in the context of its work site, an area called “Rocknest Wind Drift,” on the 84th Martian day, or sol, of its mission (Oct. 31, 2012). Image released Dec. 3, 2012.
CREDIT: NASA/JPL-Caltech/MSSS


Astronauts Could Survive Mars Radiation for Long Stretches, Rover Study Suggests

by Mike Wall, SPACE Senior Writer
Date: 04 December 2012 Time: 10:51 AM ET

SAN FRANCISCO — 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.

That’s a pretty manageable number, researchers said.

Read more: Astronauts Could Survive Mars Radiation for Long Stretches, Curiosity Rover Study Suggests | Space

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