?名字
... 所属州: AL 名字: Thagard 姓: Redge ...
?萨伽德
萨伽德
撒加德 ; 保罗·萨加德 ; 保罗·撒加德
美国
标签
Thagard announced plans to leave NASA shortly after he returned from Mir .
CNN: Continued U.S. participation questioned
Thagard, the former NASA astronaut, said he was exposed to 120 millisieverts during his 115 days in low-Earth orbit aboard Mir.
NPR: Astronauts Face Radiation Threat On Long Mars Trip
Despite the potential health risks, Thagard said there likely won't be a shortage of astronauts willing to hop on a Mars flight.
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