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Are Conditions Right for Life in Space
Harvard professor George Wald argues life elsewhere in the universe is possible and likely given common universal elements. He outlines a sequence from atmospheric gases to organic molecules, fermentation, photosynthesis, and oxygen buildup that enables cellular respiration, noting a Earthlike planet with suitable size and solar radiation is key.
MENTIONED IN THIS ARTICLE
George Wald
Harvard University
National Academcy of Sciences
Wald