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Oxygen Is Not Definitive Evidence of Life on Extrasolar Planets - Astrobiology

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Oxygen Is Not Definitive Evidence of Life on Extrasolar Planets - Astrobiology

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The Earth’s atmosphere contains oxygen because plants continuously produce it through photosynthesis. This abundant supply of oxygen allows life forms like animals to flourish. Therefore, oxygen had been thought to be an essential biomarker for life on extrasolar planets. But now, research assistant professor Norio Narita of the Astrobiology Center of NINS, the National Institutes […]

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Keith Cowing

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