NASA is aiming for a human mission to Mars by the 2030s, but experts are still not sure if humans can withstand the radiation that the journey would involve.
It could take eight months to reach the Red Planet, not to mention time spent on it with a thin atmosphere and no known food source, followed by an attempt at returning to Earth.
One recent study found that with the current limits of technology, adventurers to Mars would start dying in 68 days. Another study this week said the risk of radiationinduced cancer would limit any trip to one year.
NASA considers it just as important to study whether people’s mental states could hold up under the pressure of a Mars journey, said principal investigator Kim Binsted.
Both crew psychology and radiation are considered “red risks” for Mars, “which means essentially, until we solve these problems, we are not going,” Binsted told AFP. Binsted is coordinating the experiment from the outside the dome. Those inside are healthy, educated people in their 20s and 30s, each with a keen interest in science and space. “It is kind of the opposite of a reality show. We select against drama.” explained Binsted. “We try to pick a crew that will get along with each other. We pick generally levelheaded and easygoing people.”
They include Allen Mirkadyrov, an aerospace engineer for and Neil Scheibelhut, a microbiologist and former soldier in Iraq. Sophie Milam is an expert in robotics who is pursuing a master’s degree in engineering, and Zak Wilson is a mechanical engineer. The commander is Canadianborn Martha Lenio, who earned a doctor degree in engineering and has worked in the sustainable building industry, according to her biography.
【2016届高考英语二轮复习专项训练:选择题专练卷(4)】相关文章:
★ 【人教版】2014届高考英语一轮复习指导考点针对练:选修6 unit2《Poems》
★ 【人教版】2014届高考英语一轮复习指导考点针对练:选修7 unit5《Travelling abroad》
★ 【北师大版】2014届高考英语一轮复习指导课时作业:Unit 6 A卷 Word版含解析
★ 山东省济宁市2016年高考英语复习:时间与原因状语从句基础题
★ 2016届高考英语二轮复习专项训练:非选择题专练卷(3)
★ 2017高考四川省广安市英语阅读理解一轮系列训练:22(含解析)
★ 【课堂新坐标】2017届高考英语(通用版)二轮复习书面表达专题训练:技法6 规避重复适当进行句式升级(含解析)
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21