Astronauts need to be in unparalleled physical and mental shape to handle the rigors of space -- writer Tom Wolfe famously described it as the "right stuff" in his 1979 book of the same name. NASA's latest class of would-be space sailors is no exception.


원문출처 : https://www.cnn.com/2021/12/11/world/science-newsletter-pterosaur-largest-flying-animal-wt-scn/index.html