Near the summit of Costa Rica's Poás volcano is one of Earth's most acidic lakes, bright blue and full of toxic metals.
원문출처 : https://www.cnn.com/2022/02/03/world/mars-analog-poas-volcano-lake-scn/index.html
원문출처 : https://www.cnn.com/2022/02/03/world/mars-analog-poas-volcano-lake-scn/index.html