In a report published last August, they estimated that Mars astronauts would receive a dose of more than 80 rems a year.By comparison, the legal dose limit for nuclear power plant workers in the U.

• 在2005年8月发表的一份报告中，他们估计赴火星的太空人一年将会接受超过80仑目的辐射量，而相较之下，美国法律限制核能电厂工人每年不得受超过5仑目的辐射剂量。