NASA has chosen the landing site for its next rover mission to Mars: a treacherously rugged 3.6 billion-year-old crater.
원문출처 : https://www.cnn.com/2018/11/20/health/nasa-mars-site-rover-intl/index.html
원문출처 : https://www.cnn.com/2018/11/20/health/nasa-mars-site-rover-intl/index.html