Results 11 to 20 of about 186,384 (251)

The color of the Martian sky and its influence on the illumination of the Martian surface [PDF]

Journal of Geophysical Research: Planets, 1999
The dust in the atmosphere above the Mars Pathfinder landing site produced a bright, red sky that increases in redness toward the horizon at midday. There is also evidence for an absorption band in the scattered light from the sky at 860 nm. A model of the sky brightness has been developed [Markiewicz et al., this issue] and tested against Imager for ...
N. Thomas, W. J. Markiewicz, R. M. Sablotny, M. W. Wuttke, H. U. Keller, J. R. Johnson, Robert J. Reid, Peter H. Smith   +7 more
openalex   +4 more sources

Impact of surface Albedo on Martian photochemistry [PDF]

Earth and Planetary Physics, 2020
Solar energy is the primary driving force behind a planet’s climate system, and surface albedo plays a key role in determining the energy budget of the planet.
Deepak Singh
doaj   +2 more sources

Global Transport of Chlorine Species in the Martian Atmosphere and the Resulting Surface Distribution of Perchlorates

Journal of Geophysical Research: Planets, Volume 130, Issue 3, March 2025.
Abstract Recent observations by instruments aboard the ExoMars Trace Gas Orbiter (TGO) have revealed the seasonal presence of hydrogen chloride (HCl $\text{HCl}$) in the Martian atmosphere. This discovery may have important implications for Martian photochemistry as chlorine species are chemically active, and it may provide a link between the ...
Kylash Rajendran, Paul Streeter, S. R. Lewis, Maria Duffy, James Holmes, Kevin Olsen, Oleg Korablev, Manish Patel   +7 more
openalex   +2 more sources

New approaches to the exploration: planet Mars and bacterial life [PDF]

arXiv, 2011
Planet Mars past environmental conditions were similar to the early Earth, but nowadays they are similar to those of a very cold desert, irradiated by intense solar UV light. However, some terrestrial lifeform showed the capability to adapt to very harsh environments, similar to the extreme condition of the Red Planet.
Bertoloni, Giulio, D'Alessandro, Maurizio, Galletta, Giuseppe   +2 more
arxiv   +2 more sources

Progress and prospects for research on Martian topographic features and typical landform identification

Frontiers in Astronomy and Space Sciences, 2023
The study of Martian surface topography is important for understanding the geological evolution of Mars and revealing the spatial differentiation of the Martian landscape.
Danyang Liu, Danyang Liu, Weiming Cheng, Weiming Cheng, Weiming Cheng, Weiming Cheng   +5 more
doaj   +1 more source

Development of non‐destructive analytical strategies based on Raman spectroscopy and complementary techniques for Mars Sample Return tested on Northwest Africa 1950 Martian meteorite

Journal of Raman Spectroscopy, Volume 53, Issue 12, Page 2068-2085, December 2022., 2022
A non‐destructive analytical methodology, based on Raman microscopy (single point and imaging), micro‐energy dispersive X‐ray fluorescence (μED‐XRF) imaging analysis, and scanning electron microscopy coupled to energy dispersive spectroscopy (SEM‐EDS), is suggested for a first analytical characterization for the Martian samples that will be taken to ...
Leire Coloma, Cristina García‐Florentino, Jennifer Huidobro, Imanol Torre‐Fdez, Julene Aramendia, Gorka Arana, Kepa Castro, Juan Manuel Madariaga   +7 more
wiley   +1 more source

Characterization of the Martian Surface Layer [PDF]

Journal of the Atmospheric Sciences, 2009
Abstract The authors have estimated the diurnal evolution of Monin–Obukhov length, friction velocity, temperature scale, surface heat flux, eddy-transfer coefficients for momentum and heat, and turbulent viscous dissipation rate on the Martian surface layer for a complete sol belonging to the Pathfinder mission. All these magnitudes have
Martínez, Germán, Valero Rodríguez, Francisco, Vázquez Martínez, Luis   +2 more
openaire   +3 more sources

What Is the Radiation Impact of Extreme Solar Energetic Particle Events on Mars?

Space Weather, 2023
Solar Energetic Particles (SEP) are one of the major sources of the Martian radiation environment. It is important to understand the SEP‐induced Martian radiation environment for future human habitats on Mars.
Jian Zhang, Jingnan Guo, Mikhail I. Dobynde   +2 more
doaj   +1 more source

The Mastcam‐Z Radiometric Calibration Targets on NASA's Perseverance Rover: Derived Irradiance Time‐Series, Dust Deposition, and Performance Over the First 350 Sols on Mars

Earth and Space Science, Volume 9, Issue 12, December 2022., 2022
Abstract The Mastcam‐Z radiometric calibration targets mounted on the NASA's Perseverance rover proved to be effective in the calibration of Mastcam‐Z images to reflectance (I/F) over the first 350 sols on Mars. Mastcam‐Z imaged the calibration targets regularly to perform reflectance calibration on multispectral image sets of targets on the Martian ...
M. Merusi, K. B. Kinch, M. B. Madsen, J. F. Bell III, J. N. Maki, A. G. Hayes, J. Joseph, J. R. Johnson, M. Rice, E. A. Cloutis, D. Applin, M. T. Lemmon, A. F. Vaughan, J. I. Núñez, E. Jensen, J. Z. Kristensen, K. Paris, E. Cisneros, M. R. Kennedy, O. Gasnault   +19 more
wiley   +1 more source

Effectiveness of radiation shields constructed from Martian regolith and different polymers for human habitat on Mars using MULASSIS/GEANT4 and OLTARIS

AIP Advances, 2023
Mars exploration and the possibility of future Martian colonization have generated much interest in recent years. However, several problems make long-term permanence on Mars challenging, one of which is the radiation environment of the red planet.
Md. Abdullah Al Zaman, Lasany Arfin Kunja   +1 more
doaj   +1 more source