宏大构想：我们要去火星吗？

   最大资源网 提供本片资源  The attemt to send and land astronauts on Mars risks billions of dollars and the lives of those brave enough to attemt it. Is the ossible benefit really worth the risk? And is it really achievable?\r\n　　Guiding us through this ethical and scientific minefield is Dr Kevin Fong. Kevin#39;s diverse background in astrohysics, aeronautics and medicine makes him uniquely laced to unders...