Results 141 to 150 of about 35,859 (291)

Mars Orbiter Laser Altimeter: Experiment summary after the first year of global mapping of Mars [PDF]

, 2001
The Mars Orbiter Laser Altimeter (MOLA), an instrument on the Mars Global Surveyor spacecraft, has measured the topography, surface roughness, and 1.064-μm reflectivity of Mars and the heights of volatile and dust clouds.
Ivanov, Anton B., Muhleman, Duane O., Smith, David E.   +2 more
core  

Using Venus, Earth, and Mars to Understand Exoplanet Volatile and Climate Evolution

Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract Venus, Earth, and Mars exhibit a wide range of interactions between their deep interiors, surfaces, lower and upper atmospheres, and the Sun, with commensurate variations in the nature of their atmospheres and evolution of their volatiles. By examining these worlds' characteristics and behavior, we can gain some understanding of the breadth of
Bruce M. Jakosky, Paul K. Byrne
wiley   +1 more source

Mineralogically Diverse and Salt‐Rich Regolith in Jezero Crater Characterized Using X‐Ray Spectroscopy

Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract The Planetary Instrument for X‐ray Lithochemistry (PIXL) onboard the Perseverance rover has characterized the composition of Martian regolith at a scale of hundreds of microns using micro‐focus X‐ray fluorescence spectroscopy. PIXL data reveal a diverse population of regolith grains with distinct spectral, chemical, and crystallographic ...
Andrew O. Shumway, Tanya V. Kizovski, David C. Catling, Scott J. VanBommel, Michael W. M. Jones, Brendan J. Orenstein, Mariek E. Schmidt, Michael M. Tice, Joel A. Hurowitz, Abigail L. Knight, Benton C. Clark, Lawrence Wade, Emily L. Cardarelli, An Y. Li, Mike J. Zawaski, David A. Klevang, William T. Elam, Elisabeth M. Hausrath, Allan H. Treiman, Jesper Henneke, Nicholas J. Tosca, Yang Liu, Morgan L. Cable, Abigail C. Allwood   +23 more
wiley   +1 more source

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

The spectroscopic chemical and photophysical properties of Martian soils and their analogs [PDF]

The program of research outlined should advance significantly the understanding of the spectral signal of montmorillonites in general and the variations produced in it by structural and surface ferric and ferrous iron and interlayer water as a function ...
Coyne, Lelia M.
core   +1 more source

MarsBots: Robotic Learning Module [PDF]

, 2006
This learning module offers hands-on, minds-on activities investigating the Martian environment and robotic technologies of space exploration. The learning module contains 16 national standards-based lessons designed to progress logically from learning ...

core  

Electrostatic Charging of Lunar Cavities Governed by the Flow‐to‐Thermal Speed Ratio: 3D PIC Simulations and a Free‐Fall Model

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract We use Particle‐In‐Cell (PIC) simulations to investigate the charging characteristics inside deep cavities on the lunar surface under the solar wind plasma conditions. Specifically, we systematically study the dependence of the cavity bottom potential on plasma flow velocity and cavity aspect ratio.
J. Nakazono, Y. Miyake, W. J. Miloch
wiley   +1 more source

In situ XRF and gamma ray spectrometer for Mars sample return mission [PDF]

A combined in situ X-ray fluorescence (XRF) and passive gamma ray spectrometer instrument is proposed for the chemical elemental analysis of various Martian surfaces and samples. The combined instrument can be carried on board a rover.
Evans, Larry G., Lo, I. Yin, Squyres, Steven W., Trombka, Jacob I.   +3 more
core   +1 more source

Martian north polar cap summer water cycle

, 2016
A key outstanding question in Martian science is 'are the polar caps gaining or losing mass and what are the implications for past, current and future climate?' To address this question, we use observations from the Compact Reconnaissance Imaging ...
Becerra, Patricio, Brown, Adrian J., Byrne, Shane, Calvin, Wendy M.   +3 more
core   +1 more source

Quantifying Serpentinization‐Driven Remagnetization From Ridge Axis to Subduction Zone Using Quantum Diamond Microscopy

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract Diachronous ferromagnetic (sensu lato) mineral populations are often juxtaposed on micrometer‐to‐millimeter scales. This poses significant challenges for extracting reliable paleomagnetic information because standard methods measure bulk magnetic moments and cannot distinguish between magnetic minerals with overlapping demagnetization spectra.
Liang Qi, Adrian R. Muxworthy, Evelyn B. Baker, Xiaobin Cao, Simon Allerton, James F. J. Bryson, Yong Zhang   +6 more
wiley   +1 more source