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...
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玛利亚·莎拉波娃 约翰·麦肯罗 安迪·罗迪克 Nick Kyrgios Félix Auger-Aliassime Iga Swiatek Aryna Sabalenka Ajla Tomljanovic Paula Badosa Matteo Berrettini Maria Sakkari Sloane Stephens Stefanos Tsitsipas Casper Ruud Thanasi Kokkinakis
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