Expanding the Search for Life Beyond Earth: Metabolic Signatures, Complexity, and Technosignatures

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Scientists are widening the hunt for alien life beyond Earth by considering different chemistries, signs of metabolism and evolution, and complex, adaptive systems, exploring technosignatures as an alternative, while insisting on ruling out non-life explanations and demanding extraordinary evidence, with Mary Magnuson framing this evolving, interdisciplinary effort.

‘Project Hail Mary’ explores unique forms of life in space – 5 essential reads on searching for aliens that look nothing like life on Earth - North Country Now
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‘Project Hail Mary’ explores unique forms of life in space – 5 essential reads on searching for aliens that look nothing like life on Earth - North Country Now

The fictional biologist in ‘Project Hail Mary’ claims that potential alien organisms might not be made of carbon or require water, unlike life on Earth.