Why Are Plants Green? The Answer Might Work on Any Planet

…photosynthesis?

via WIRED

Recently, however, in the pages of Science, scientists finally provided a more complete answer. They built a model to explain why plants’ photosynthetic machinery wastes green light. What they did not expect was that their model would also explain the colors of other photosynthetic forms of life too. Their findings point to an evolutionary principle governing light-harvesting organisms that might apply throughout the universe. They also offer a lesson that—at least sometimes—evolution cares less about making biological systems efficient than about keeping them stable.

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