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Space exploration technology continues to expand humanity's reach beyond Earth, and even more ambitious efforts are striving to establish long-duration human settlements on Mars. The dependence of martian settlers on life-support…

Physics and Society · Physics 2026-02-10 Roxanne Ruixian Zhu , Jacob Haqq-Misra

The melt productivity of a differentiated planet's mantle is primarily controlled by its iron content, which is itself approximated by the planet's core mass fraction (CMF). Here we show that estimates of an exo-planet's CMF allows robust…

Earth and Planetary Astrophysics · Physics 2021-06-02 Brendan Dyck , Jon Wade , Richard Palin

Special Regions on Mars are defined as environments able to host liquid water that meets certain temperature and water activity requirements that allow known terrestrial organisms to replicate, and therefore could be habitable. Such regions…

Earth and Planetary Astrophysics · Physics 2020-12-02 Edgard G. Rivera-Valentín , Vincent F. Chevrier , Alejandro Soto , Germán Martínez

We present results from the Met Office Unified Model (UM), a world-leading climate and weather model, adapted to simulate a dry Martian climate. We detail the adaptation of the basic parameterisations and analyse results from two…

Earth and Planetary Astrophysics · Physics 2023-02-02 Danny McCulloch , Denis E. Sergeev , Nathan Mayne , Matthew Bate , James Manners , Ian Boutle , Benjamin Drummond , Kristzian Kohary

The detection of sulphur species in the Martian atmosphere would be a strong indicator of volcanic outgassing from the surface of Mars. We wish to establish the presence of SO2, H2S, or OCS in the Martian atmosphere or determine upper…

We investigate the prospects for the past or current existence of habitable conditions deep underneath the surfaces of the Moon and Mars as well as generic bound and free-floating extrasolar rocky objects. We construct a simple model that…

Earth and Planetary Astrophysics · Physics 2020-09-23 Manasvi Lingam , Abraham Loeb

Eight percent of global carbon dioxide emissions can be attributed to the production of cement, the main component of concrete, which is also the dominant source of CO2 emissions in the construction of data centers. The discovery of…

Machine Learning · Computer Science 2023-11-21 Sebastian Ament , Andrew Witte , Nishant Garg , Julius Kusuma

The debate over the early Martian climate is among the most intriguing in planetary science. Although the geologic evidence generally supports a warmer and wetter climate, climate models have had difficulty simulating such a scenario,…

Earth and Planetary Astrophysics · Physics 2020-03-12 Ramses M. Ramirez , Robert A. Craddock , Tomohiro Usui

It is generally accepted that silicate-metal (`rocky') planet formation relies on coagulation from a mixture of sub-Mars sized planetary embryos and (smaller) planetesimals that dynamically emerge from the evolving circum-solar disc in the…

Earth and Planetary Astrophysics · Physics 2016-10-26 R. Brasser , S. J. Mojzsis , S. C. Werner , S. Matsumura , S. Ida

Structural materials are broadly used in applications such as nuclear vessels, high-temperature processes, and civil construction. Usually, during their placing and lifespan, they may present free or chemically bonded liquid phases in their…

Materials Science · Physics 2021-03-29 M. H. Moreira , R. F. Ausas , S. Dal Pont , P. I. Pelissari , A. P. Luz , V. C. Pandolfelli

The lunar South pole likely contains significant amounts of water in the permanently shadowed craters there. Extracting this water for life support at a lunar base or to make rocket fuel would take large amounts of power, of order…

Earth and Planetary Astrophysics · Physics 2022-02-09 Sephora Ruppert , Amia Ross , Joost Vlassak , Martin Elvis

The martian atmosphere hosts dynamical phenomena ranging from planet-encircling dust storms to mesoscale orographic clouds and nocturnal low-level jets. General circulation model show capability to simulate these phenomena, but is…

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

Planetary formation models predict the existence of massive terrestrial planets and experiments are now being designed that should succeed in discovering them and measuring their masses and radii. We calculate internal structures of planets…

Astrophysics · Physics 2009-11-11 Diana Valencia , Richard J. O'Connell , Dimitar D. Sasselov , ;

The NASA InSight mission payload includes the Heat Flow and Physical Properties Package HP$^3$ to measure the surface heat flow. The package was designed to use a small penetrator -- nicknamed the mole -- to implement a string of…

The present Martian climate is characterized by a cold and dry environment with a thin atmosphere of carbon dioxides (CO2). In such conditions, the planetary climate and habitability are determined by the distribution of CO2 between…

Earth and Planetary Astrophysics · Physics 2025-09-10 Yasuto Watanabe , Eiichi Tajika , Arihiro Kamada

In the next decade, two rovers will characterize in situ the mineralogy of rocks on Mars, using for the first time near-infrared reflectance spectrometers: SuperCam onboard the Mars 2020 rover and MicrOmega onboard the ExoMars rover,…

Celestial bodies such as the Moon and Mars are mainly covered by loose, granular soil, a notoriously challenging terrain to traverse with (wheeled) robotic systems. Here, we present experimental work on traversing steep, granular slopes…

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

A giant impact is commonly thought to explain the dramatic contrast in elevation and crustal thickness between the two hemispheres of Mars known as the "Martian Dichotomy". Initially, this scenario referred to an impact in the northern…

Earth and Planetary Astrophysics · Physics 2022-12-08 Harry A. Ballantyne , Martin Jutzi , Gregor J. Golabek , Lokesh Mishra , Kar Wai Cheng , Antoine B. Rozel , Paul Tackley