Results 1 to 10 of about 189,416 (301)

Investigating the Martian atmosphere using the ExoMars 2016 lander [PDF]

open access: yes, 2015
Accurate modelling of the Martian atmosphere is essential both for planning and completing future missions to the Martian surface, and for accurate analysis and interpretation of the data that they return.
Balme, M. R.   +3 more
core  

The search for ancient life on Mars using morphological and mass spectrometric analysis: an analog study in detecting microfossils in Messinian gypsum

open access: yesFrontiers in Astronomy and Space Sciences
Hydrated sulfate deposits have been detected on Mars. A spaceflight instrument capable of detecting microfossils in these salt deposits is highly important for the search for ancient life on Mars.
Youcef Sellam   +8 more
doaj   +1 more source

Evolution of Force‐Free Magnetic Structure in the Dayside Ionosphere of Mars

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 4, April 2025.
Abstract Magnetic fields measured in the ionosphere of Mars by the magnetometers onboard the Mars Atmosphere and Volatile EvolutioN (MAVEN) and the Mars Global Surveyor (MGS) spacecraft display a wide range of spatial scales, ranging from global to small‐scale.
T. E. Cravens   +5 more
wiley   +1 more source

Bacillus subtilis Spore Resistance to Simulated Mars Surface Conditions

open access: yesFrontiers in Microbiology, 2019
In a Mars exploration scenario, knowing if and how highly resistant Bacillus subtilis spores would survive on the Martian surface is crucial to design planetary protection measures and avoid false positives in life-detection experiments.
Marta Cortesão   +7 more
doaj   +1 more source

Questioning the Reliability of Methane Detections on Mars by the Curiosity Rover

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 4, April 2025.
Abstract Over the past decade, the Tunable Laser Spectrometer (TLS) on NASA's Curiosity rover has reported several detections of methane on Mars, attracting attention due to the potential astrobiological implications of its presence. Here, we re‐analyze published TLS data, identifying issues in data robustness and reduction.
Sébastien Viscardy   +2 more
wiley   +1 more source

Martian surface properties [PDF]

open access: yes
The objectives were: to characterize surficial geologic units through integration of Infrared Thermal Mapper (IRTM)-derived regolith properties with other existing remote sensing data; to determine the physical and spectral properties of volcanic units ...
Greeley, R.
core   +1 more source

Identifying Landslides in Atla Regio on Venus

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 4, April 2025.
Abstract We performed a systematic search for landslides in the Alta Regio region of Venus, located from (16°S, 179°W) to (21°N, 147°W). Using data primarily from Magellan Cycle 1 radar imagery, we identified 29 landslides in this region. There were 19 previously identified across the entire surface (Malin, 1992, https://doi.org/10.1029/92je01343 ...
E. L. Jesina, L. M. Carter, I. Ganesh
wiley   +1 more source

Martian surface materials [PDF]

open access: yes
A semiquantitative appreciation for the physical properties of the Mars surface materials and their global variations can be gained from the Viking Lander and remote sensing observations.
Moore, H. J.
core   +1 more source

Mars base buildup scenarios [PDF]

open access: yes, 1985
Two Mars surface based build-up scenarios are presented in order to help visualize the mission and to serve as a basis for trade studies. In the first scenario, direct manned landings on the Martian surface occur early in the missions and scientific ...
Blacic, J. D.
core   +1 more source

GMSRI: A Texture-Based Martian Surface Rock Image Dataset. [PDF]

open access: yesSensors (Basel), 2021
Wang C   +4 more
europepmc   +1 more source

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