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The grayness of the...
The grayness of the origin of life
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- Smith, Hillary H. (author)
- Department of Geosciences, The Pennsylvania State University, PA, University Park, United States; Earth and Environmental Systems Institute, The Pennsylvania State University, PA, University Park, United States
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- Hyde, Andrew S. (author)
- Department of Geosciences, The Pennsylvania State University, PA, University Park, United States; Earth and Environmental Systems Institute, The Pennsylvania State University, PA, University Park, United States
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- Simkus, Danielle N. (author)
- NASA Goddard Space Flight Center, MD, Greenbelt, United States; NASA Postdoctoral Program, USRA, MD, Columbia, United States; Department of Physics, Catholic University of America, DC, Washington, United States
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- Libby, Eric (author)
- Umeå universitet,Institutionen för matematik och matematisk statistik,Santa Fe Institute, NM, Santa Fe, United States
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- Maurer, Sarah E. (author)
- Department of Chemistry and Biochemistry, Central Connecticut State University, CT, New Britain, United States
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- Graham, Heather V. (author)
- NASA Goddard Space Flight Center, MD, Greenbelt, United States; Department of Physics, Catholic University of America, DC, Washington, United States
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- Kempes, Christopher P. (author)
- Santa Fe Institute, NM, Santa Fe, United States
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- Lollar, Barbara Sherwood (author)
- Department of Earth Sciences, University of Toronto, ON, Toronto, Canada
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- Chou, Luoth (author)
- NASA Goddard Space Flight Center, MD, Greenbelt, United States; NASA Postdoctoral Program, USRA, MD, Columbia, United States; Department of Biology, Georgetown University, DC, Washington, United States
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- Ellington, Andrew D. (author)
- Department of Molecular Biosciences, College of Natural Sciences, The University of Texas at Austin, TX, Austin, United States; Center for Systems and Synthetic Biology, The University of Texas at Austin, TX, Austin, United States
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- Fricke, G. Matthew (author)
- Department of Computer Science, University of New Mexico, NM, Albuquerque, United States
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- Girguis, Peter R. (author)
- Department of Organismic and Evolutionary Biology, Harvard University, MA, Cambridge, United States
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- Grefenstette, Natalie M. (author)
- Santa Fe Institute, NM, Santa Fe, United States; Blue Marble Space Institute of Science, WA, Seattle, United States
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- Pozarycki, Chad I. (author)
- NASA Goddard Space Flight Center, MD, Greenbelt, United States; Department of Biology, Georgetown University, DC, Washington, United States
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- House, Christopher H. (author)
- Department of Geosciences, The Pennsylvania State University, PA, University Park, United States; Earth and Environmental Systems Institute, The Pennsylvania State University, PA, University Park, United States
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- Johnson, Sarah Stewart (author)
- Department of Biology, Georgetown University, DC, Washington, United States; Science, Technology and International Affairs Program, Georgetown University, DC, Washington, United States
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(creator_code:org_t)
- 2021-05-29
- 2021
- English.
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In: Life. - : MDPI AG. - 2075-1729. ; 11:6
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Abstract
Subject headings
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- In the search for life beyond Earth, distinguishing the living from the non-living is paramount. However, this distinction is often elusive, as the origin of life is likely a stepwise evolutionary process, not a singular event. Regardless of the favored origin of life model, an inherent “grayness” blurs the theorized threshold defining life. Here, we explore the ambiguities between the biotic and the abiotic at the origin of life. The role of grayness extends into later transitions as well. By recognizing the limitations posed by grayness, life detection researchers will be better able to develop methods sensitive to prebiotic chemical systems and life with alternative biochemistries.
Subject headings
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Keyword
- Agnostic biosignatures
- Evolutionary transitions
- Lipids
- Metalloenzymes
- Meteoritic organics
- Origin of life
- Pre-RNAs
- Prebiotic evolution
- Thioesters
Publication and Content Type
- ref (subject category)
- art (subject category)
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Life
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- By the author/editor
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Smith, Hillary H ...
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Hyde, Andrew S.
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Simkus, Danielle ...
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Libby, Eric
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Maurer, Sarah E.
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Graham, Heather ...
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show more...
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Kempes, Christop ...
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Lollar, Barbara ...
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Chou, Luoth
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Ellington, Andre ...
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Fricke, G. Matth ...
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Girguis, Peter R ...
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Grefenstette, Na ...
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Pozarycki, Chad ...
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House, Christoph ...
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Johnson, Sarah S ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Evolutionary Bio ...
- Articles in the publication
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Life
- By the university
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Umeå University