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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. Kevin39;s diverse background in astrophysics, aeronautics and medicine makes him uniquely placed to unders...如果您喜欢免费短视频（yaya.vodpond.cc）分享的《宏大构想: 我们要去火星吗?》，别忘了推荐给你的好友！
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