Biosignature

A biosignature (sometimes called chemical fossil or molecular fossil) is any substance – such as an element, isotope, or molecule, or phenomenon that provides scientific evidence of past or present life

References

↑ Steele; Beaty; et al. (September 26, 2006). "Final report of the MEPAG Astrobiology Field Laboratory Science Steering Group (AFL-SSG)" (.doc). The Astrobiology Field Laboratory. U.S.A.: the Mars Exploration Program Analysis Group (MEPAG) - NASA. p. 72.
↑ "Biosignature - definition". Science Dictionary. 2011. Archived from the original on 2010-03-16. Retrieved 2011-01-12.
↑ Summons RE, Amend JP, Bish D, Buick R, Cody GD, Des Marais DJ, et al. (March 2011). "Preservation of martian organic and environmental records: final report of the Mars biosignature working group" (PDF). Astrobiology. 11 (2): 157–81. Bibcode:2011AsBio..11..157S. doi:10.1089/ast.2010.0506. hdl:1721.1/66519. PMID 21417945. S2CID 9963677. Archived from the original (PDF) on 2019-11-28. Retrieved 2013-06-22.

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[SSG-1] Steele; Beaty; et al. (September 26, 2006). "Final report of the MEPAG Astrobiology Field Laboratory Science Steering Group (AFL-SSG)" (.doc). The Astrobiology Field Laboratory. U.S.A.: the Mars Exploration Program Analysis Group (MEPAG) - NASA. p. 72.

[2] "Biosignature - definition". Science Dictionary. 2011. Archived from the original on 2010-03-16. Retrieved 2011-01-12.

[Biosignatures_2011-3] Summons RE, Amend JP, Bish D, Buick R, Cody GD, Des Marais DJ, et al. (March 2011). "Preservation of martian organic and environmental records: final report of the Mars biosignature working group" (PDF). Astrobiology. 11 (2): 157–81. Bibcode:2011AsBio..11..157S. doi:10.1089/ast.2010.0506. hdl:1721.1/66519. PMID 21417945. S2CID 9963677. Archived from the original (PDF) on 2019-11-28. Retrieved 2013-06-22.