If we make it to Mars, we're not going to be able to bring everything humankind needs to stay for an extended period of time -- or to construct colonies on the red planet.
원문출처 : https://www.cnn.com/2020/09/16/world/mars-building-material-scn/index.html
원문출처 : https://www.cnn.com/2020/09/16/world/mars-building-material-scn/index.html