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-Michael Crichton-

"The history of evolution is that life escapes all barriers. Life breaks free. Life expands to new territories. Painfully, perhaps even dangerously. But life finds a way."


Edwards, C. D., et al., 2020Deep Trek: Mission Concepts for Exploring Subsurface Habitability & Life on Mars – A Window into Subsurface Life in the Solar SystemSubmitted to the NAS Planetary Science and Astrobiology Decadal Survey, 2023 - 2033. 

Garvin, Z. K., et al., 2020. Mars Trace Gas Fluxes: Critical Strategies and Implications for the Upcoming Decade. Submitted to the NAS Planetary Science and Astrobiology Decadal Survey, 2023 - 2033

Stamenković, V. et al., 2020. Deep Trek: Science of Subsurface Habitability & Life on Mars – A Window into Subsurface Life in the Solar SystemSubmitted to the NAS Planetary Science and Astrobiology Decadal Survey, 2023 - 2033.


Mars Sample Return Campaign Science Group [including Harris, R. L.), 2023. Report of the Science Community on the Proposed First Sample Depot for the Mars Sample Return CampaignMeteoritics and Planetary Science

Liu, J., Harris, R. L., et al., 2023Reversibility controls on extreme methane clumped isotope signatures from anaerobic oxidation of methaneGeochimica et Cosmochimica Acta

Harris, R. L., et al., 2021FISH-TAMB, a fixation-free mRNA fluorescent labeling technique, to target transcriptionally active members in microbial communities. Microbial Ecology.

Harris, R. L., et al., 2021. Transcriptional response to prolonged perchlorate exposure in the methanogen Methanosarcina barkeri and implications for Martian habitability. Scientific Reports.

Warr, O. et al., 2021. The role of low-temperature   O in the isotopic evolution of deep subsurface fluids. Chemical Geology.

Carrier, B. L., et al., 2020. Mars Extant Life: What's Next? Conference Report. Astrobiology 20(6).

Harris, R. L., et al., 2018. Draft Genome Sequence of “Candidatus Bathyarchaeota” Archaeon BE326-BA-RLH, an Uncultured Denitrifier and Putative Anaerobic Methanotroph from South Africa’s Deep Continental BiosphereMicrobiology Resource Announcements 7(20) e01295-18.

Lau, M. C. Y., Harris, R. L., et al., 2018. Taxonomic and functional compositions impacted by the quality of metatranscriptomic assemblies. Frontiers in Microbiology 9:1235.

Huang, J., et al., 2018. A complex fluviolacustrine environment on early Mars and its astrobiological potentials. Astrobiology 18(8).

Lau, M. C. Y., et al., 2016. An oligotrophic deep-subsurface community dependent on syntrophy is dominated sulfur-driven autotrophic denitrifiers. PNAS E7927–E7936.



Harris, R. L. and Schuerger, A. C., 2023. Hydrogenotrophic methanogenesis at 7-12 mbar by Methanosarcina barkeri under simulated Martian atmospheric conditionsResearch Square. 

Harris, R. L., Alian, O., Klonicki, E., Treude, T., and Girguis, P. R. in prep.  Prolific anaerobic oxidation of methane from metalliferous hydrothermal sulfides at Ringvent, North Guaymas Basin. 

Schuerger, A. C., Harris, R. L., et al., in prep. Geochemistries of diverse Mars analog soils can boost or inhibit methane production at low-temperatures.

Harris, R. L., et al., in prep. Tracing piezotolerant anaerobic methane oxidation in deep sub-seafloor microbial communities from IODP 370 Site C0023A in the Nankai Trough accretionary complex.


Devils Hole in Death Valley, CA, home to one of the world's rarest fish and nearly 40 candidate microbial phyla

© 2014 by Rachel L. Harris

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