Evidence map›Paper›PMID 34207658›Full record

ArticleLife (Basel, Switzerland)2021

Origin of Life on Mars: Suitability and Opportunities.

Benton C Clark, Vera M Kolb, Andrew Steele, Christopher H House, Nina L Lanza, Patrick J Gasda, Scott J VanBommel, Horton E Newsom, Jesús Martínez-Frías

Abstract read
In one paragraph

Article in Life (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed.

  1. Article
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  4. Multi-technique characterization of iron reduction by an AntarcticApplied and environmental microbiology · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Benton C ClarkSpace Science Institute, Boulder, CO 80301, USA.ORCID 0000-0002-5546-8757
Vera M KolbDepartment of Chemistry, University of Wisconsin-Parkside, Kenosha, WI 53141, USA.
Andrew SteeleEarth and Planetary Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA.
Christopher H HouseDepartment of Biochemistry and Molecular Biology, Pennsylvania State University, State College, PA 16807, USA.ORCID 0000-0002-4926-4985
Nina L LanzaLos Alamos National Laboratory, Los Alamos, NM 87545, USA.
Patrick J GasdaLos Alamos National Laboratory, Los Alamos, NM 87545, USA.
Scott J VanBommelDepartment of Earth and Planetary Sciences, Washington University in St. Louis, St. Louis, MO 63130, USA.
Horton E NewsomInstitute of Meteoritics, Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 88033, USA.ORCID 0000-0002-4358-8161
Jesús Martínez-FríasInstitute of Geosciences (CSIC-UCM), 28040 Madrid, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although the habitability of early Mars is now well established, its suitability for conditions favorable to an independent origin of life (OoL) has been less certain. With continued exploration, evidence has mounted for a widespread diversity of physical and chemical conditions on Mars that mimic those variously hypothesized as settings in which life first arose on Earth. Mars has also provided water, energy sources, CHNOPS elements, critical catalytic transition metal elements, as well as B, Mg, Ca, Na and K, all of which are elements associated with life as we know it. With its highly favorable sulfur abundance and land/ocean ratio, early wet Mars remains a prime candidate for its own OoL, in many respects superior to Earth. The relatively well-preserved ancient surface of planet Mars helps inform the range of possible analogous conditions during the now-obliterated history of early Earth. Continued exploration of Mars also contributes to the understanding of the opportunities for settings enabling an OoL on exoplanets. Favoring geochemical sediment samples for eventual return to Earth will enhance assessments of the likelihood of a Martian OoL.

Indexed as

astrobiologyCHNOPSearly EarthexoplanetsMarsorigin of lifeprebiotic chemical evolutionsample returntransition elements

Identifiers

PMID34207658
PMCPMC8227854

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.