Results 171 to 180 of about 109,917 (327)

Absolute ages from crater statistics: Using radiometric ages of Martian samples for determining the Martian cratering chronology [PDF]

open access: yes
In the absence of dates derived from rock samples, impact crater frequencies are commonly used to date Martian surface units. All models for absolute dating rely on the lunar cratering chronology and on the validity of its extrapolation to Martian ...
Neukum, G.
core   +1 more source

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

open access: yes, 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.   +2 more
core  

Explainable Machine Learning for Mapping Minerals From CRISM Hyperspectral Data

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 2, June 2025.
Abstract This paper addresses some of the challenges in automating mineral mapping from CRISM hyperspectral data using two ML algorithms, namely, Random Forest (RF) and Gradient Boosted Trees (GBTree) algorithms. An interpretable framework using tree‐ensemble classification and SHapely Additive exPlanations (SHAP) is implemented to interpret the model ...
Sandeepan Dhoundiyal   +5 more
wiley   +1 more source

A Model of a Martian Great Dust Storm [PDF]

open access: hybrid, 1973
P. J. Gierasch, R. M. Goody
openalex   +1 more source

Interplanetary Hydrogen Observations of the Emirates Ultraviolet Spectrometer Onboard the Emirates Mars Mission

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 6, June 2025.
Abstract The Emirates Mars Ultraviolet Spectrometer (EMUS) aboard the Emirates Mars Mission (EMM) has been studying backscattered interplanetary hydrogen (interplanetary hydrogen (IPH)) Lyman emissions with dedicated observation strategies viz., U‐OS3b and U‐OS4b. These observation techniques involve looking away from Mars from the EMM's orbit.
R. Susarla   +17 more
wiley   +1 more source

Diurnal Winds Near the Martian Polar Caps [PDF]

open access: hybrid, 1976
Stephen D. Burk
openalex   +1 more source

Martian Popping Thing

open access: yesJournal of Cytology, 2018
Manoj Gopal Madakshira, Imtiaz Ahmed
openaire   +4 more sources

Integrated Seismic Refraction, Reflection, and Rayleigh Wave Imaging at Kilbourne Hole, New Mexico: Implications for Lunar Subsurface Exploration

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 6, June 2025.
Abstract Maars are volcanoes with a central crater surrounded by an ejecta ring formed through surface explosive processes from underlying magma interacting with fluids. The study of terrestrial maar volcanoes, as analogs to explosive volcanic vents on the Moon and other planets, can improve our understanding of planetary volcanism and evolution.
Jingchuan Wang   +19 more
wiley   +1 more source

Validation Experiments for In Situ Ne Isotope Analysis on Mars: Gas Separation Flange Assembly Using Polyimide Membrane and Metal Seal

open access: yesThe Planetary Science Journal
The Martian atmospheric Ne may reflect recent gas supply from its mantle via volcanic degassing, due to its short (∼100 Myr) escape timescale. The isotopic ratio of the Martian atmospheric Ne would therefore provide insights into that of the Martian ...
Yuichiro Cho   +12 more
doaj   +1 more source

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