Results 91 to 100 of about 80,914 (264)

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  

Seasonal Ice Cover Could Allow Liquid Lakes to Persist in a Cold Mars Paleoclimate

open access: yesAGU Advances, Volume 7, Issue 1, February 2026.
Abstract Geomorphic and stratigraphic studies of Mars prove that extensive liquid water flowed and pooled on the surface early in Mars' history. Martian paleoclimate models, however, have difficulty simulating climate conditions warm enough to maintain liquid water on early Mars.
Eleanor L. Moreland   +8 more
wiley   +1 more source

Development of a mineralogically replicated Martian regolith simulant informed by Martian meteorites

open access: yesCleaner Materials
Martian regolith simulants play a critical role in scientific research, payload testing, and in situ resource utilization (ISRU) experiments. However, the absence of actual Martian soil samples limits the accuracy of current simulants in replicating the ...
Yutong Deng   +5 more
doaj   +1 more source

Improving the Accuracy of the Martian Ephemeris Short-Term Prediction

open access: yesAdvances in Astronomy, 2018
The Chinese Mars exploration mission is planned to be launched in 2020, which includes an orbiter, a lander, and a rover. High precision Martian ephemeris is very important in Mars exploration, especially for the Martian orbit insertion and the Martian ...
Quan Shan   +5 more
doaj   +1 more source

Assimilating the Martian water cycle [PDF]

open access: yes, 2012
Water ice clouds have been shown to alter the thermal structure of the Martian atmosphere. Here we discuss the assimilation of total column water vapour and dust optical depth data from the Thermal Emission Spectrometer (TES) into the UK/LMD MGCM, and ...
Lewis, S. R.   +3 more
core  

Impact Reactivation of a Hydrothermal System in Basalt in the Vargeão Dome Impact Structure, Brazil

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract As hydrous minerals have been observed in impact craters on Mars, impact‐generated hydrothermal systems (IGHSs) have been considered as potential habitats for life on that planet. The Vargeão Dome, a 12 km wide impact structure in southern Brazil, was formed in basalts with at least two hydrothermal alteration stages.
Jitse Alsemgeest   +5 more
wiley   +1 more source

Simultaneous Two‐Point Study of the Martian Bow Shock Affected by an Interplanetary Coronal Mass Ejection: Tianwen‐1 and MAVEN Observations

open access: yesGeophysical Research Letters
The Martian bow shock (BS) plays a significant role in the Martian plasma environment. Based on observations from Tianwen‐1 and MAVEN, we first report two cases of simultaneous two‐point crossings of the Martian BS affected by an interplanetary coronal ...
Ming Wang   +9 more
doaj   +1 more source

Petrologic constraints on the pressure, temperature, time and composition of the Martian interior [PDF]

open access: yes
Petrologic analysis of surface samples has been used to deduce pressure and temperature conditions existing in the crust and upper mantle at specific times in the Earth's history, as well as to estimate the chemical and mineralogical composition of the ...
Holloway, John R.
core   +1 more source

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