Results 91 to 100 of about 35,386 (281)
Hypotheses for near-surface exchange of methane on Mars [PDF]
, 2016 The Curiosity rover recently detected a background of 0.7 ppb and spikes of 7 ppb of methane on Mars. This in situ measurement reorients our understanding of the Martian environment and its potential for life, as the current theories do not entail any ...
Bloom, A. Anthony +4 more
core +3 more sources
Business Strategy &Development, Volume 8, Issue 3, September 2025.ABSTRACT Corporate Social Responsibility (CSR) programs are often developed in the Global North and applied in the Global South with minimal input from local Southern stakeholders. This may lead to a limited understanding of Southern cultural contexts, making CSR programs less effective.
Claudia Speidel
wiley +1 more source
Bacillus subtilis Spore Resistance to Simulated Mars Surface Conditions
Frontiers 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
Petrologic constraints on the pressure, temperature, time and composition of the Martian interior [PDF]
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
Interactions of rare earth elements with living organisms and emerging biotechnical applications
PLANTS, PEOPLE, PLANET, Volume 7, Issue 5, Page 1251-1274, September 2025.Rare earth elements (REEs) are critical resources required to achieve net‐zero carbon emission targets and energy security. However, rising demand for REEs coupled with significant extraction and processing challenges and geopolitical risks restricts access to REE resources.
Samantha A. McGaughey +6 more
wiley +1 more source
ARAMIS: a Martian radiative environment model built from GEANT4 simulations
Journal of Space Weather and Space ClimateA new model of the Martian surface radiative environment has been built: Atmospheric RAdiation Model for Ionizing spectra on martian Surface (ARAMIS). Based on Monte Carlo calculations, it offers high computational flexibility for surface flux spectra ...
Charpentier Gabin +12 more
doaj +1 more source
Chalcophile Element Constraints on the Sulfur Content of the Martian Mantle [PDF]
The sulfur content of the Martian mantle is critical to understanding volcanic volatiles supplied to the surface of Mars and possibly climate. In the absence of Martian mantle rocks, sulfur content of the mantle has been inferred from S contents of ...
Hewins, R. H. +5 more
core +1 more source
A Goniometric System for Photometric and Polarization Measurements of Planetary Regolith Analogs
Earth and Space Science, Volume 12, Issue 9, September 2025.Abstract The Planetary Surface Texture Laboratory at the Johns Hopkins University Applied Physics Laboratory is a facility for the study of the photometric and polarization behavior of regolith analogs using an ∼1.5‐m‐radius arc goniometer system. This system characterizes the photometric and polarization response of granular materials (planetary ...
Lizeth O. Magaña +9 more
wiley +1 more source
Frontiers in Astronomy and Space SciencesHydrated 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
The SIMPSONS project: An integrated Mars transportation system [PDF]
In response to the Request for Proposal (RFP) for an integrated transportation system network for an advanced Martian base, Frontier Transportation Systems (FTS) presents the results of the SIMPSONS project (Systems Integration for Mars Planetary Surface
Allen, Kent +8 more
core +1 more source