We may have already discovered the essence of life on Mars 40 years ago, according to a former NASA scientist.
원문출처 : https://www.cnn.com/2019/10/15/us/nasa-life-on-mars-intl-hnk-scli/index.html
원문출처 : https://www.cnn.com/2019/10/15/us/nasa-life-on-mars-intl-hnk-scli/index.html