S. S. Johnson
- Provenance and diagenesis of the evaporite-bearing Burns formation, Meridiani Planum, Mars
2005/11/01 by S.M. McLennan, S. M. McLennan, J. F. Bell +58 · 43 citations
Earth and Planetary Sciences · Physics and Astronomy · #Astro and Planetary Science #Cement #Cementation (geology) #Diagenesis #Evaporite #Geochemistry #Geology #Geomorphology #Mineralogy #Paleontology and Stratigraphy of Fossils #Planetary Science and Exploration #Sedimentary depositional environment #Sedimentary rock #Siliciclastic
- Community Report from the Biosignatures Standards of Evidence Workshop
2022/10/25 by Victoria Meadows, Heather Graham, Meadows, Victoria +178 · 3 voices · 3 citations
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Astro and Planetary Science #Astrobiology #Computer science #Data science #Exoplanet #Extant taxon #Extraterrestrial life #History #Plan (archaeology) #Planetary Science and Exploration #Space Science and Extraterrestrial Life #astro-ph.EP #astro-ph.IM #q-bio.PE
- Ancient bacteria show evidence of DNA repair
2007/08/29 by S. S. Johnson, Martin B. Hebsgaard, Torben R. Christensen +11 · 2 citations
Environmental Science · Agricultural and Biological Sciences · Physics and Astronomy · #Microbial Community Ecology and Physiology #Biocrusts and Microbial Ecology #Planetary Science and Exploration #Dormancy #Bacteria #Biology #DNA repair #DNA #DNA damage #Genetics #Cell biology #Botany
- Fatty Acid Preservation in Modern and Relict Hot-Spring Deposits in Iceland, with Implications for Organics Detection on Mars
2020/10/29 by Amy J. Williams, K. L. Craft, M. Millán +6 · 1 citation
Physics and Astronomy · Environmental Science · #Planetary Science and Exploration #Isotope Analysis in Ecology #Astro and Planetary Science #Hot spring #Mars Exploration Program #Astrobiology #Martian #Chemosynthesis #Geology #Hydrothermal circulation #Exploration of Mars #Extraterrestrial life #Environmental science #Hydrothermal vent #Paleontology