Results 141 to 150 of about 2,029 (193)

Radiation-Resistant Microbes: Pioneers for Life Beyond Earth. [PDF]

Curr Microbiol
Coleine C, Cordero RJ.
europepmc   +1 more source

Saltation in terrestrial and Martian atmospheres

, 2018
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Quantitative stratigraphic volume of Martian lowlands using Noachian crater statistics: new bounds on volcanic effusion and flooding epochs. [PDF]

Front Astron Space Sci
Salese F, Hiatt E, Pondrelli M, Hesse MA, Soldano M, Fairén AG.   +5 more
europepmc   +1 more source

Oxygen isotopic evidence that Gale crater, Mars, was home to an Early Hesperian water reservoir that underwent significant evaporation. [PDF]

Proc Natl Acad Sci U S A
Hofmann AE, Archer PD, McAdam AC, Sutter B, Bristow TF, Eiler JM, Webster CR, Flesch GJ, Fraeman AA, Franz HB, House CH, Rampe EB, Stern JC, Mahaffy PR, Malespin CA, Grotzinger JP, Vasavada AR.   +16 more
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Recent production rates of cosmogenic nuclides in the igneous rocks of Jezero crater floor, Mars. [PDF]

Sci Rep
Zorzano M-, García-Herrera AC, Martín-Torres J.   +2 more
europepmc   +1 more source

Integrating resource utilization and bioregenerative life support systems for sustainable space exploration. [PDF]

Front Microbiol
Esposito M, Tonietti L, Santomartino R, Giovannelli D, Chianese E, Rotundi A, Romano I, Poli A, Finore I, Cordone A, Di Donato P.   +10 more
europepmc   +1 more source

In This Issue. [PDF]

Proc Natl Acad Sci U S A
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Photochemistry of HCl in the martian atmosphere

Icarus, 2022
The recent discovery of HCl on Mars (Korablev et al. 2021, Olsen et al. 2021) indicates its strong seasonal variations and correlation with dust. To study this idea, we develop photochemical models for summer midlatitudes at aphelion and perihelion. We assume that HCl is formed in heterogeneous reactions of FeCl3 and/or NaCl in the dust with H, and the
openaire   +1 more source

Martian Atmospheric Erosion Rates

Science, 2007
Mars was once wet but is now dry, and the fate of its ancient carbon dioxide atmosphere is one of the biggest puzzles in martian planetology. We have measured the current loss rate due to the solar wind interaction for different species: Q(O + ) = 1.6·10 23 per second = 4 grams per second (g ...
Stas, Barabash, Andrei, Fedorov, Rickard, Lundin, Jean-Andre, Sauvaud   +3 more
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A Photochemical Model of the Martian Atmosphere

Icarus, 1994
The factors governing the amounts of CO, O2, and O3 in the martian atmosphere are investigated using a minimally constrained, one-dimensional photochemical model. We find that the incorporation of temperature-dependent CO2 absorption cross sections leads to an enhancement in the water photolysis rate, increasing the abundance of OH radicals to the ...
Nair, Hari, Allen, Mark, Anbar, Ariel D., Yung, Yuk L., Clancy, R. Todd   +4 more
openaire   +3 more sources