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Tracing a modern biosphere on Mars

Exploring the hypothesis that life is present on Mars today is key to informing planetary protection issues at a pivotal time, with the clock ticking to return pristine samples before humans irrevocably alter the environment.

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Fig. 1: Mars biosphere engine.

References

  1. Yung, Y. L. et al. Astrobiology 18, 1221–1242 (2018).

    Article  ADS  Google Scholar 

  2. Lauro, S. E. et al. Nat. Astron. 5, 63–70 (2021).

    Article  ADS  Google Scholar 

  3. Brož, P., Hauber, E., Wray, J. J. & Michael, G. Earth Planet. Sci. Lett. 473, 122–130 (2017).

    Article  ADS  Google Scholar 

  4. Horvath, D. G., Moitra, P., Hamilton, C. W., Craddock, R. A. & Andrews-Hanna, J. C. Preprint at https://arxiv.org/abs/2011.05956 (2020).

  5. Carrier, B. et al. Astrobiology 20, 785–814 (2020).

    Article  ADS  Google Scholar 

  6. Davila, A. F. & Schulze-Makuch, D. Astrobiology 16, 159–168 (2016).

    Article  ADS  Google Scholar 

  7. Cabrol, N. A. Astrobiology 18, 1–27 (2018).

    Article  ADS  Google Scholar 

  8. Hoshino, T. et al. Proc. Natl Acad. Sci. USA 117, 27587–27597 (2020).

    Article  Google Scholar 

  9. National Academies of Sciences, Engineering, and Medicine. Review of the MEPAG Report on Mars Special Regions (The National Academies Press, 2015); https://doi.org/10.17226/21816

  10. Ertem, G., Ertem, M. C., McKay, C. P. & Hazen, R. M. Int. J. Astrobiol. 16, 280–285 (2017).

    Article  ADS  Google Scholar 

  11. Wordsworth, R., Kerber, L. & Cockell, C. Nat. Astron. 3, 898–903 (2019).

    Article  ADS  Google Scholar 

  12. Cabrol, N. A. et al. From Habitability to Life (eds Cabrol, N. A. & Grin, E. A.) Ch. 13 (Elsevier, 2018).

  13. Lorenz, R. D. Nat. Astron. 3, 466–467 (2019).

    Article  ADS  Google Scholar 

  14. Warren-Rhodes, K. A. et al. Front. Microbiol. 10, 69 (2019).

    Article  Google Scholar 

  15. Smith, D. E. et al. J. Geophys. Res. 106, 23689–23722 (2001).

    Article  ADS  Google Scholar 

Download references

Acknowledgements

This work was supported by the NASA Astrobiology Institute via Grant No. NNA15BB01A.

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Correspondence to Nathalie A. Cabrol.

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Cabrol, N.A. Tracing a modern biosphere on Mars. Nat Astron 5, 210–212 (2021). https://doi.org/10.1038/s41550-021-01327-x

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