Results 71 to 80 of about 3,040 (184)
Life, 2011 On Earth, marine anaerobic methane oxidation (AOM) can be driven by the microbial reduction of sulfate, iron, and manganese. Here, we have further characterized marine sediment incubations to determine if the mineral dependent methane oxidation involves ...
Victoria J. Orphan +2 more
doaj +1 more source
Bacillus subtilis Spore Resistance to Simulated Mars Surface Conditions
Frontiers in Microbiology, 2019 In a Mars exploration scenario, knowing if and how highly resistant Bacillus subtilis spores would survive on the Martian surface is crucial to design planetary protection measures and avoid false positives in life-detection experiments.
Marta Cortesão +7 more
doaj +1 more source
Mars Crater Production Function Based on Mapped Crater Populations
Space: Science & TechnologyThe Martian isochrons are the basis in analyzing the impact flux and surface dating, and currently, they are usually derived from those of the Moon because no samples have been collected from Mars.
Zongyu Yue +7 more
doaj +1 more source
Martian Surface Paleotemperatures from Thermochronology of Meteorites
Science, 2005 The temporal evolution of past martian surface temperatures is poorly known. We used thermochronology and published noble gas and petrographic data to constrain the temperature histories of the nakhlites and martian meteorite ALH84001. We found that the nakhlites have not been heated to more than 350°C since they formed.
Shuster, David L., Weiss, Benjamin P.
openaire +3 more sources
IEEE Open Journal of the Communications SocietySpace exploration has witnessed a steady increase since the 1960s, with Mars playing a significant role in our quest for further knowledge. As the ambition to colonize Mars becomes a reality through the collaboration of private companies and space ...
Enes Koktas +3 more
doaj +1 more source
Martian Surface and Atmosphere Workshop
Eos, Transactions American Geophysical Union, 1992 The NASA‐sponsored Martian Surface and Atmosphere Through Time Study Project convened its first major meeting at the University of Colorado in Boulder, September 23–25, 1991. The workshop, co‐sponsored by the Lunar and Planetary Institute (LPI) and the Laboratory for Atmospheric and Space Physics at the University of Colorado, brought together an ...
openaire +1 more source
Ozone Detector Based on Ultraviolet Observations on the Martian Surface
Remote SensingOzone plays a key role in both atmospheric chemistry and UV absorption in planetary atmospheres. On Mars, upper-tropospheric ozone has been widely characterized by space-based instruments.
Daniel Viúdez-Moreiras +10 more
doaj +1 more source
Journal of CO2 UtilizationWe explored the potential of plasma-based In-Situ Resource Utilization (ISRU) for Mars through the conversion of Martian atmosphere (∼96% CO2, 2% N2, and 2% Ar) into life-sustaining chemicals.
Seán Kelly +8 more
doaj +1 more source
Acoustic Propagation in the Near‐Surface Martian Atmosphere
Journal of Geophysical Research: PlanetsAbstract This work introduces a comprehensive model of sound propagation on Mars, in light of the recent operation of several microphones on the Martian surface. The main outcome of this work is an operational acoustic model capable of simulating the sound field created by any source, at any location on the ...
Martin Gillier +7 more
openaire +2 more sources