90 citations
- Georgia Institute of TechnologyUS5 papers
- NASA Astrobiology InstituteUS5 papers
- Universities Space Research AssociationUS5 papers
- University of California, RiversideUS3 papers
- Blue Marble Space Institute of ScienceUS2 papers
- The University of TokyoJP2 papers
- University of WashingtonUS2 papers
- Arizona State UniversityUS1 paper
- Hitachi Power Solutions Co., Ltd. (Japan)JP1 paper
- Institute of Marine and Environmental TechnologyUS1 paper
- Monash UniversityAU1 paper
- National Aeronautics and Space AdministrationUS1 paper
7 papers
Nutrient Supply to Planetary Biospheres from Anoxic Weathering of Mafic Oceanic Crust
Drew D. Syverson, Christopher T. Reinhard, Terry T. Isson +6
Phosphorus is an essential element for life, and the phosphorous cycle is widely believed to be a key factor limiting the extent of Earth's biosphere and its impact on remotely det…
A sluggish mid-Proterozoic biosphere and its effect on Earth's redox balance
Kazumi Ozaki, Christopher T. Reinhard, Eiichi Tajika
The possibility of low but nontrivial atmospheric oxygen (O2) levels during the mid-Proterozoic (between 1.8 and 0.8 billion years ago, Ga) has important ramifications for understa…
Anoxygenic photosynthesis and the delayed oxygenation of Earth's atmosphere
Kazumi Ozaki, Katharine J. Thompson, Rachel L. Simister +2
The emergence of oxygenic photosynthesis created a new niche with dramatic potential to transform energy flow through Earth's biosphere. However, more primitive forms of photosynth…
Effects of primitive photosynthesis on Earth's early climate system
Kazumi Ozaki, Eiichi Tajika, Peng K. Hong +2
The evolution of different forms of photosynthetic life has profoundly altered the activity level of the biosphere, radically reshaping the composition of Earth's oceans and atmosp…
Early evolution of purple retinal pigments on Earth and implications for exoplanet biosignatures
Shiladitya DasSarma, Edward W. Schwieterman
We propose that retinal-based phototrophy arose early in the evolution of life on Earth, profoundly impacting the development of photosynthesis and creating implications for the se…
HAZMAT. IV. Flares and Superflares on Young M Stars in the Far Ultraviolet
R. O. Parke Loyd, Evgenya L. Shkolnik, Adam C. Schneider +4
M stars are powerful emitters of far-ultraviolet light. Over long timescales, a significant, possibly dominant, fraction of this emission is produced by stellar flares. Characteriz…