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Cited by 265

The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.

Defining Life

Open access
Benner, Steven A.·2010·Astrobiology

Abstract

Any definition is intricately connected to a theory that gives it meaning. Accordingly, this article discusses various definitions of life held in the astrobiology community by considering their connected "theories of life." These include certain "list" definitions and a popular definition that holds that life is a "self-sustaining chemical system capable of Darwinian evolution." We then act as "anthropologists," studying what scientists do to determine which definition-theories of life they constructively hold as they design missions to seek non-terran life. We also look at how constructive beliefs about biosignatures change as observational data accumulate. And we consider how a definition centered on Darwinian evolution might itself be forced to change as supra-Darwinian species emerge, including in our descendents, and consider the chances of our encountering supra-Darwinian species in our exploration of the Cosmos. Last, we ask what chemical structures might support Darwinian evolution universally; these structures might be universal biosignatures.

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Crossref · 10.1089/ast.2010.0524

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Metadata

Authors
Benner, S. A.
Venue
Astrobiology
Published
2010-12
Volume
10
Issue
10
Pages
1021-1030
ISSN
  • 1531-1074 (ISSN-L)
  • 1557-8070
OpenAlex
W4236920505
Cited by
265
References
13
FWCI
2.74
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Defining Life. https://app.cochat.ai/papers/10.1089/ast.2010.0524
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Benner, S. A. (2010). Defining Life. Astrobiology. https://doi.org/10.1089/ast.2010.0524

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.