Results 51 to 60 of about 3,068 (163)

The search for ancient life on Mars using morphological and mass spectrometric analysis: an analog study in detecting microfossils in Messinian gypsum

Frontiers in Astronomy and Space Sciences
Hydrated sulfate deposits have been detected on Mars. A spaceflight instrument capable of detecting microfossils in these salt deposits is highly important for the search for ancient life on Mars.
Youcef Sellam, Salome Gruchola, Marek Tulej, Peter Keresztes Schmidt, Andreas Riedo, Andreas Riedo, Sofiane Meddane, Peter Wurz, Peter Wurz   +8 more
doaj   +1 more source

Martian sub-surface ionising radiation: biosignatures and geology [PDF]

Biogeosciences, 2007
The surface of Mars, unshielded by thick atmosphere or global magnetic field, is exposed to high levels of cosmic radiation. This ionising radiation field is deleterious to the survival of dormant cells or spores and the persistence of molecular ...
J. M. Ward, L. Desorgher, L. R. Dartnell, A. J. Coates   +3 more
doaj  

Mars Crater Production Function Based on Mapped Crater Populations

Space: Science & Technology
The 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, Sheng Gou, Gregory Michael, Kaichang Di, Yangting Lin, Jianzhong Liu, Xianhua Li, Fuyuan Wu   +7 more
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Reconfigurable Intelligent Surface Deployments for Mars: Communication and Localization Across Diverse Terrains

IEEE Open Journal of the Communications Society
Space 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, Recep A. Tasci, Ibrahim Yildirim, Ertugrul Basar   +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 Sensing
Ozone 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, Alfonso Saiz-Lopez, Michael D. Smith, Víctor Apestigue, Ignacio Arruego, Elisa García, Juan J. Jiménez, José A. Rodriguez-Manfredi, Daniel Toledo, Mike Wolff, María-Paz Zorzano   +10 more
doaj   +1 more source

. . . and martian surfaces [PDF]

Nature, 1989
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Acoustic Propagation in the Near‐Surface Martian Atmosphere

Journal of Geophysical Research: Planets
Abstract 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, Andi Petculescu, Alexander E. Stott, Naomi Murdoch, Xavier Jacob, Baptiste Chide, Sylvestre Maurice, David Mimoun   +7 more
openaire   +2 more sources

Plasma-based conversion of martian atmosphere into life-sustaining chemicals: The benefits of utilizing martian ambient pressure

Journal of CO2 Utilization
We 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, Elizabeth Mercer, Yury Gorbanev, Igor Fedirchyk, Claudia Verheyen, Klaus Werner, Pluton Pullumbi, Aidan Cowley, Annemie Bogaerts   +8 more
doaj   +1 more source

Evaluation of HZETRN on the Martian surface: Sensitivity tests and model results. [PDF]

Life Sci Space Res (Amst), 2017
Slaba TC, Stoffle NN.
europepmc   +1 more source