紀錄片宏大構想：我們要去火星嗎？在線觀看完整版-宏大構想：我們要去火星嗎？劇情The attempt to send and land astronauts on Mars risks billions of dollars and the lives of those brave enough to attempt it. Is the possible benefit really worth the risk? And is it really achievable? 　　Guiding us through this ethical and scientific minefield is Dr Kevin Fong. Kevin's diverse background in astrophysics, aeronautics and medicine makes him uniquely placed to unders...