Salt basins, sand and lava cover much of its 40,000 square miles (103,600 square km), and the soil is so lifeless that NASA can design their Mars ground tests on Atacama land.

大约4万平方英里(103,600平方公里)的地区都被盐盆地，沙地和熔岩所覆盖。因为这里的土壤毫无生命力所以美国国家航空及太空局可以在这个岛上进行火星地面测验。

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Salt basins, sand and lava cover much of its 40,000 square miles (103,600 square km), and the soil is so lifeless that NASA can design their Mars ground tests on Atacama land.

大约4万平方英里（103,600平方公里）的地区都被盐盆地，沙地和熔岩所覆盖。 因为这里的土壤毫无生命力所以美国国家航空及太空局可以在这个岛上进行火星地面测验。

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According to Cristina Milesi, a research scientist working at NASA's Ames Research Center, lawns are America's largest irrigated crop, with 63, 240 square miles under cultivation.

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