BOULDER, Colo., May 30 (UPI) -- Astronauts who might journey someday to Mars would be subject to significant radiation risks, a NASA Curiosity rover study released Thursday concluded.
Researchers led by Cary Zeitlin of the Southwest Research Institute in Boulder, Colo., said measurements from the space agency's Curiosity rover, which arrived on Mars last year, suggest astronauts would likely receive a significant fraction -- about 15 percent to 20 percent -- of their lifetime recommended allowable radiation dose on a round-trip to Mars. USA Today reported.