A team have found that oxygenic photosynthesis arose at least one billion years before cyanobacteria evolved. That could mean it is a relatively simple process to evolve and the probability of complex life emerging in a distant exoplanet is much higher.

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A team have found that oxygenic photosynthesis arose at least one billion years before cyanobacteria evolved. That could mean it is a relatively simple process to evolve and the probability of complex life emerging in a distant exoplanet is much higher.