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What It Will Take to Farm Sunlight from Space

Whether they're producing voltage directly from solar rays or focusing them to melt salt like Ivanpah, even Earth's biggest and baddest solar power plants are hamstrung by all this damnable atmosphere getting in the way. But a new kind of off-world solar energy plant could soon provide the whole planet with plenty of power—we just have to finish figuring out how to build and operate it.

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