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The abundance of highly siderophile elements (HSEs) inferred for Mars' mantle from martian meteorites implies a Late Veneer (LV) mass addition of ~0.8 wt% with broadly chondritic composition. Late accretion to Mars by a differentiated…

Earth and Planetary Astrophysics · Physics 2019-06-24 Jason Man Yin Woo , Hidenori Genda , Ramon Brasser , Stephen J. Mojzsis

Ancient sediments provide archives of climate and habitability on Mars. Gale Crater, the landing site for the Mars Science Laboratory (MSL), hosts a 5 km high sedimentary mound. Hypotheses for mound formation include evaporitic, lacustrine,…

Earth and Planetary Astrophysics · Physics 2012-07-06 Edwin S. Kite , Kevin W. Lewis , Michael P. Lamb

The gullies on Mars were discovered in the year 1999.Since then several hypotheses have appeared trying to explain the presence of these gullies. The main hypotheses are the ones which suggest that some liquid, water or CO2, was responsible…

Earth and Planetary Astrophysics · Physics 2010-06-30 Yolanda Cedillo-Flores , Héctor Javier Durand-Manterola

This study determined the contribution of Martian topography and the density jump at the Mohorovicic discontinuity (M) to the gravity in a quadratic approximation. It also resolved the problem of determining the possible depths of…

Earth and Planetary Astrophysics · Physics 2012-02-13 N. A. Chuikova , L. P. Nasonova , T. G. Maximova

Isotopic anomalies provide a means of probing the materials responsible for the formation of terrestrial planets. By analyzing new iron isotopic anomaly data from Martian meteorites and drawing insights from published data for O, Ca, Ti,…

Earth and Planetary Astrophysics · Physics 2023-09-28 Nicolas Dauphas , Timo Hopp , David Nesvorny

We study the ionopause of Mars using a database of 6,893 ionopause detections obtained over 11 years by the MARSIS (Mars Advanced Radar for Subsurface and Ionosphere Sounding) experiment. The ionopause, in this work, is defined as a steep…

Space Physics · Physics 2019-08-30 F. Chu , Z. Girazian , D. A. Gurnett , D. D. Morgan , J. Halekas , A. J. Kopf , E. M. B. Thiemann , F. Duru

Observations of water ice clouds and aerosols on Mars can provide important insights into the complexity of the water cycle. Recent observations have indicated an important link between dust activity and the water cycle, as intense dust…

A Martian semiannual oscillation (SAO), similar to that in the Earth's tropical stratosphere, is evident in the Mars Analysis Correction Data Assimilation reanalysis dataset (MACDA) version 1.0, not only in the tropics, but also extending…

Earth and Planetary Astrophysics · Physics 2019-07-17 Tao Ruan , Neil T. Lewis , Stephen R. Lewis , Luca Montabone , Peter L. Read

We present an in-depth analysis of a time interval when quasi-linear mirror mode structures were detected by magnetic field and plasma measurements as observed by the NASA/Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft. We employ…

Remote sensing observations and Mars rover missions have recorded the presence of beaches, salt lakes, and wind erosion landforms in Martian sediments. All these observations indicate that Mars was hydrated in its early history. There used…

Geophysics · Physics 2025-01-16 Fanwei Meng , Xiaopeng Wang , André Antunes , Jie Zhao , Guoliang Zhou , Biqiong Wu , Tianqi Hao

In this paper, we analyze water ice occurrences at the surface of Mars using near-infrared observations, and we study their distribution with a climate model. Latitudes between 45{\deg}S and 50{\deg}N are considered. Data from the…

Earth and Planetary Astrophysics · Physics 2015-05-27 Mathieu Vincendon , François Forget , John Mustard

We derive synthetic electrical conductivity, seismic velocity, and density distributions from the results of martian mantle convection models affected by basin-forming meteorite impacts. The electrical conductivity features an intermediate…

Earth and Planetary Astrophysics · Physics 2021-02-09 Thomas Ruedas , Doris Breuer

Observations of the South Polar Residual Cap suggest a possible erosion of the cap, leading to an increase of the global mass of the atmosphere. We test this assumption by making the first comparison between Viking 1 and InSight surface…

Earth and Planetary Astrophysics · Physics 2022-09-28 L. Lange , F. Forget , D. Banfield , M. Wolff , A. Spiga , E. Millour , D. Viúdez-Moreiras , A. Bierjon , S. Piqueux , C. Newman , J. Pla-García , W. B. Banerdt

Previous observations have shown that, during Martian dust storms, the peak of the ionosphere rises in altitude. Observational studies of this type, however, have been extremely limited. Using 13 years of ionospheric peak altitude data from…

Earth and Planetary Astrophysics · Physics 2020-02-05 Z. Girazian , Z. Luppen , D. D. Morgan , F. Chu , L. Montabone , E. M. B. Thiemann , D. A. Gurnett , J. Halekas , A. J. Kopf , F. Nemec

We investigate the global seasonal variations of near-surface relative humidity and relevant attributes, like temperature and water vapor volume mixing ratio on Mars using calculations from modelled and measurement data. We focus on 2 am…

Earth and Planetary Astrophysics · Physics 2019-07-24 B. Pál , Á. Kereszturi , F. Forget , M. D. Smith

Near-surface wind fields on Mars are profoundly modulated by complex topography, yet fine-scale wind field characteristics remain poorly resolved for key geomorphological units such as deltas, valleys, and impact craters, due to the spatial…

Geophysics · Physics 2026-04-03 Yuhang Liu , Lei Zhang , Zhihao Shen , Peng Cao , Zhao Jiang , Jing Li , Jinhai Zhang

Mars' tadpole craters are small, young craters whose crater rims are incised by one or more exit breaches but lack visible inlets. The tadpole forming climate records the poorly understood drying of Mars since the Early Hesperian. A third…

Earth and Planetary Astrophysics · Physics 2024-07-17 Alexandra O. Warren , Sharon A. Wilson , Alan Howard , Axel Noblet , Edwin S. Kite

Seismology is the main tool for inferring the deep interior structures of Earth and potentially also of other planetary bodies in the solar system. Terrestrial seismology is influenced by the presence of the ocean-generated microseismic…

Earth and Planetary Astrophysics · Physics 2020-03-20 Simon C. Stähler , Mark P. Panning , Céline Hadziioannou , Ralph Lorenz , Steve Vance , Knut Klingbeil , Sharon Kedar

Ancient hydrology is recorded by sedimentary rocks on Mars. The most voluminous sedimentary rocks that formed during Mars' Hesperian period are sulfate-rich rocks, explored by the $Opportunity$ rover from 2004-2012 and soon to be…

Earth and Planetary Astrophysics · Physics 2019-08-14 Edwin S. Kite , Mohit Melwani Daswani

The wind-driven hopping motion of sand grains, known as saltation, forms dunes and ripples and ejects fine dust particles into the atmosphere on both Earth and Mars. While the wind speed at which saltation is initiated, the fluid threshold,…

Earth and Planetary Astrophysics · Physics 2010-01-28 Jasper F. Kok