China has completed its first public test of a Mars lander, keeping the country on track for an unmanned exploration mission to the red planet in 2020.
원문출처 : https://www.cnn.com/2019/11/14/asia/china-mars-lander-space-intl-hnk-scn/index.html
원문출처 : https://www.cnn.com/2019/11/14/asia/china-mars-lander-space-intl-hnk-scn/index.html