Results 81 to 90 of about 186,384 (251)

Water induced sediment levitation enhances downslope transport on Mars [PDF]

, 2017
On Mars, locally warm surface temperatures (~293 K) occur, leading to the possibility of (transient) liquid water on the surface. However, water exposed to the martian atmosphere will boil, and the sediment transport capacity of such unstable water is ...
A Cousin, A Kereszturi, AH Treiman, AS McEwen, C Atwood-Stone, C Elachi, CJ Hansen, CM Dundas, CM Dundas, CM Dundas, CP McKay, D Reiss, D Reiss, D Reiss, DE Stillman, DE Stillman, DL Turcotte, DWG Sears, EJ Gaidos, F Costard, F Schmidt, G Jouannic, G Jouannic, HH Kieffer, J Arfstrom, J Laskar, J Raack, J Raack, J-P Bibring, JEC Scully, JF Mustard, JL Dickson, JL Heldmann, JL Heldmann, JL Heldmann, JM Goldspiel, JW Head, K Pasquon, KA Coleman, L Ojha, L Ojha, LK Fenton, M Balme, M Chojnacki, M Massé, M Vincendon, MA Kreslavsky, MC Malin, MC Malin, MG Kleinhans, MH Hecht, MI Richardson, MJ Westoby, MT Mellon, N Hoffman, N Mangold, PR Christensen, R Sullivan, RE Grimm, RM Haberle, S Diniega, S Diniega, SC Schon, SJ Conway, SJ Conway, SW Squyres, T Appéré, WV Boynton, YA Cengel   +68 more
core   +5 more sources

Role of Synthetic Biofilms in Bed Evolution and the Formation of Sedimentary Structures

Geophysical Research Letters, Volume 52, Issue 6, 28 March 2025.
Abstract Microbes are known to shape topographies; however, mechanisms of biofilm‐sediment interactions and the dynamic evolution of biofilm‐covered bedforms remain poorly understood. Here, we explore the effects of synthetic biofilms on the geometry and temporal evolution of underwater bedforms through flume experiments.
Willian R. Assis, Lian Shen, Judy Q. Yang   +2 more
wiley   +1 more source

Catalytic/Protective Properties of Martian Minerals and Implications for Possible Origin of Life on Mars

Life, 2018
Minerals might have played critical roles for the origin and evolution of possible life forms on Mars. The study of the interactions between the “building blocks of life„ and minerals relevant to Mars mineralogy under conditions mimicking the
Teresa Fornaro, Andrew Steele, John Robert Brucato   +2 more
doaj   +1 more source

Martian Cratering 4: Mariner 9 Initial Analysis of Cratering Chronology [PDF]

, 1973
Early analyses of cratering and other Martian surface properties that indicated extensive ancient erosion have been strongly supported by Mariner 9 data.
Hartmann, W. K.
core   +1 more source

A Case Study on the Impact of Interplanetary Coronal Mass Ejection on the Martian O(1S) 557.7 nm Dayglow Emission Using ExoMars TGO/NOMAD‐UVIS Observations: First Results

Geophysical Research Letters, Volume 52, Issue 5, 16 March 2025.
Abstract We report, for the first time, the impact of interplanetary coronal mass ejections (ICME) on the recently discovered O(1S) 557.7 nm dayglow emission in the Martian atmosphere. While there are a few studies on the seasonal variation of 557.7 nm dayglow emission available in the literature, the impact of ICME has not been investigated so far ...
Aadarsh Raj Sharma, Lot Ram, Harshaa Suhaag, Dipjyoti Patgiri, Lauriane Soret, Jean‐Claude Gérard, Ian R. Thomas, Ann Carine Vandaele, Sumanta Sarkhel   +8 more
wiley   +1 more source

Martian Multichannel Diode Laser Spectrometer (M-DLS) for In-Situ Atmospheric Composition Measurements on Mars Onboard ExoMars-2022 Landing Platform

Applied Sciences, 2020
We present a concept of the Martian multichannel diode laser spectrometer (M-DLS) instrument, a part of the science payload onboard Kazachok landing platform in the framework of the ExoMars mission second stage.
Alexander Rodin, Imant Vinogradov, Sergei Zenevich, Maxim Spiridonov, Iskander Gazizov, Viktor Kazakov, Viacheslav Meshcherinov, Ilya Golovin, Tatyana Kozlova, Yuri Lebedev, Svetlana Malashevich, Artem Nosov, Oksana Roste, Alla Venkstern, Artem Klimchuk, Vladimir Semenov, Viktor Barke, Georges Durry, Mélanie Ghysels-Dubois, Elena Tepteeva, Oleg Korablev   +20 more
doaj   +1 more source

Mixed-domain Training Improves Multi-Mission Terrain Segmentation [PDF]

arXiv, 2022
Planetary rover missions must utilize machine learning-based perception to continue extra-terrestrial exploration with little to no human presence. Martian terrain segmentation has been critical for rover navigation and hazard avoidance to perform further exploratory tasks, e.g. soil sample collection and searching for organic compounds.
arxiv  

Magnetosonic Waves Driven by Maxwellian Ring Protons in the Martian Upper Ionosphere

Geophysical Research Letters, Volume 52, Issue 5, 16 March 2025.
Abstract Magnetosonic (MS) waves can be generated by hot Maxwellian ring protons locally within the Martian upper ionosphere, characterized by a weak ambient magnetic field and the presence of cold plasma abundant in heavier ions. A comprehensive study on the resonant instabilities of MS waves making use of the derived growth rates show that ring ...
Amrutha, S. V. Singh, K. C. Barik, G. S. Lakhina   +3 more
wiley   +1 more source

Supercooled interfacial water in fine-grained soils probed by dielectric spectroscopy [PDF]

The Cryosphere, 2013
Water substantially affects nearly all physical, chemical and biological processes on the Earth. Recent Mars observations as well as laboratory investigations suggest that water is a key factor of current physical and chemical processes on the ...
A. Lorek, N. Wagner
doaj   +1 more source

The formation of the Martian moons [PDF]

, 2019
Almost all the planets of our solar system have moons. Each planetary system has however unique characteristics. The Martian system has not one single big moon like the Earth, not tens of moons of various sizes like for the giant planets, but two small moons: Phobos and Deimos. How did form such a system?
arxiv   +1 more source