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Journal Article

Biosignature stability in space enables their use for life detection on Mars

Authors

Baqué,  Mickael
External Organizations;

Backhaus,  Theresa
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Meeßen,  Joachim
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Hanke,  Franziska
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Böttger,  Ute
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Ramkissoon,  Nisha
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Olsson-Francis,  Karen
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Baumgärtner,  Michael
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Billi,  Daniela
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Cassaro,  Alessia
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de la Torre Noetzel,  Rosa
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Demets,  René
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Edwards,  Howell
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Ehrenfreund,  Pascale
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Elsaesser,  Andreas
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Foing,  Bernard
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Foucher,  Frédéric
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Huwe,  Björn
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Joshi,  Jasmin
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Kozyrovska,  Natalia
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Lasch,  Peter
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Lee,  Natuschka
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Leuko,  Stefan
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Onofri,  Silvano
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Ott,  Sieglinde
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Pacelli,  Claudia
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Rabbow,  Elke
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Rothschild,  Lynn
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/persons/resource/dirksm

Schulze-Makuch,  Dirk
3.7 Geomicrobiology, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Selbmann,  Laura
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/persons/resource/pserrano

Serrano,  Paloma
3.7 Geomicrobiology, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Szewzyk,  Ulrich
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Verseux,  Cyprien
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/persons/resource/dwagner

Wagner,  D.
3.7 Geomicrobiology, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Westall,  Frances
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Zucconi,  Laura
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de Vera,  Jean-Pierre P.
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External Ressource
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Fulltext (public)

5013298.pdf
(Publisher version), 2MB

Supplementary Material (public)
There is no public supplementary material available
Citation

Baqué, M., Backhaus, T., Meeßen, J., Hanke, F., Böttger, U., Ramkissoon, N., Olsson-Francis, K., Baumgärtner, M., Billi, D., Cassaro, A., de la Torre Noetzel, R., Demets, R., Edwards, H., Ehrenfreund, P., Elsaesser, A., Foing, B., Foucher, F., Huwe, B., Joshi, J., Kozyrovska, N., Lasch, P., Lee, N., Leuko, S., Onofri, S., Ott, S., Pacelli, C., Rabbow, E., Rothschild, L., Schulze-Makuch, D., Selbmann, L., Serrano, P., Szewzyk, U., Verseux, C., Wagner, D., Westall, F., Zucconi, L., de Vera, J.-P.-P. (2022): Biosignature stability in space enables their use for life detection on Mars. - Science Advances, 8, 36.
https://doi.org/10.1126/sciadv.abn7412


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5013298
Abstract
Two rover missions to Mars aim to detect biomolecules as a sign of extinct or extant life with, among other instruments, Raman spectrometers. However, there are many unknowns about the stability of Raman-detectable biomolecules in the martian environment, clouding the interpretation of the results. To quantify Raman-detectable biomolecule stability, we exposed seven biomolecules for 469 days to a simulated martian environment outside the International Space Station. Ultraviolet radiation (UVR) strongly changed the Raman spectra signals, but only minor change was observed when samples were shielded from UVR. These findings provide support for Mars mission operations searching for biosignatures in the subsurface. This experiment demonstrates the detectability of biomolecules by Raman spectroscopy in Mars regolith analogs after space exposure and lays the groundwork for a consolidated space-proven database of spectroscopy biosignatures in targeted environments.