Results 21 to 30 of about 36,481 (263)

Temporal analysis of all high-resolution Mars imaging products [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
A meta-data analysis has been performed of high-resolution imagery that have been acquired over the last four decades from Mars. More specifically, we are interested in two independent image parameters, the time that each image was acquired and the ...
P. Sidiropoulos, J.-P. Muller
doaj   +1 more source

New Martian Dust Simulant JMDS‐1 and Applications to Laboratory Thermal Conductivity Measurements

open access: yesEarth and Space Science, 2022
Martian dust simulant (i.e., a terrestrial substitute for Martian dust) is the basis for experimentally investigating the properties of Martian dust and its effects on Mars exploration activities.
Wen Yu   +4 more
doaj   +1 more source

Laser Ablation Sampling With Low-Power Plasma: A LA-MIP-MS Instrument for Spaceflight. [PDF]

open access: yesRapid Commun Mass Spectrom
ABSTRACT Rationale Inductively coupled plasma (ICP) is a commonly used ion source for mass spectrometry‐based chemical analysis of a wide range of materials. Traditional ICP ion sources use high power (> 1000 W) and significant gas flow (> 10 L/min), rendering them unsuitable for spaceflight, as they are too resource‐intensive for planetary spacecraft.
Farcy BJ   +11 more
europepmc   +2 more sources

An Automated Approach for Change Detection in Mars Time-Series Images from Online Image Archives using Web Crawler and Deep Learning [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Mars is a dynamic planet exhibiting numerous active surface phenomena, such as recurring slope lineae (RSL), commonly seen on the Martian surface in the mid-latitude regions.
S. Liu, B. Wu, R. Duan, S. Krasilnikov
doaj   +1 more source

In situ observations of ions and magnetic field around Phobos: the mass spectrum analyzer (MSA) for the Martian Moons eXploration (MMX) mission

open access: yesEarth, Planets and Space, 2021
The mass spectrum analyzer (MSA) will perform in situ observations of ions and magnetic fields around Phobos as part of the Martian Moons eXploration (MMX) mission to investigate the origin of the Martian moons and physical processes in the Martian ...
Shoichiro Yokota   +16 more
doaj   +1 more source

Modeling the variations of Dose Rate measured by RAD during the first MSL Martian year: 2012-2014 [PDF]

open access: yes, 2015
The Radiation Assessment Detector (RAD), on board Mars Science Laboratory's (MSL) rover Curiosity, measures the {energy spectra} of both energetic charged and neutral particles along with the radiation dose rate at the surface of Mars.
Appel, Jan K.   +17 more
core   +2 more sources

Experimental Investigation of the Atmosphere-Regolith Water Cycle on Present-Day Mars

open access: yesSensors, 2021
The water content of the upper layers of the surface of Mars is not yet quantified. Laboratory simulations are the only feasible way to investigate this in a controlled way on Earth, and then compare it with remote and in situ observations of spacecrafts
Abhilash Vakkada Ramachandran   +2 more
doaj   +1 more source

Perchlorates on Mars enhance the bacteriocidal effects of UV light

open access: yesScientific Reports, 2017
Perchlorates have been identified on the surface of Mars. This has prompted speculation of what their influence would be on habitability. We show that when irradiated with a simulated Martian UV flux, perchlorates become bacteriocidal.
Jennifer Wadsworth, Charles S. Cockell
doaj   +1 more source

Optical Constants of Martian Dust Analogs at UV–Visible–Near-infrared Wavelengths

open access: yesThe Astrophysical Journal Supplement Series, 2023
We present an advanced light-scattering model to retrieve the optical constants of three Martian dust analogs: Johnson Space Center regolith simulant, Enhanced Mojave Mars Simulant, and Mars Global Simulant.
Julia Martikainen   +9 more
doaj   +1 more source

Mineralogical characterization of Martian Jezero crater from MRO CRISM hyperspectral images [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
Martian mineral detection and mapping can provide important information and constraints on Martian aqueous history, which can be used to assess the potential habitability of Mars.
S. Jin, Y. Yang
doaj   +1 more source

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