Results 91 to 100 of about 35,859 (291)

Oxychlorine Species on Mars: A Review

open access: yesReviews of Geophysics, Volume 63, Issue 4, December 2025.
Abstract Oxychlorine species (mainly perchlorate and chlorate) have been identified at multiple locations on the surface of Mars by both orbiter and in situ rovers. They have also been found in martian meteorites. Cl‐isotopes in meteoritic minerals suggest that an oxychlorine cycle has been operating on the martian surface for the last ∼4 billion years.
Kaushik Mitra
wiley   +1 more source

ARAMIS: a Martian radiative environment model built from GEANT4 simulations

open access: yesJournal of Space Weather and Space Climate
A 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]

open access: yes
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

The Usefulness of NotebookLM's Audio Overview for Planetary Scientists

open access: yesPerspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract The availability and use of artificial intelligence (AI) tools has increased substantially in recent years. NotebookLM was released in 2023 and is an AI tool with the capability to generate text summaries of input material. In 2024, an “Audio Overviews” feature was released that can generate podcast‐style audio files of the summarized material.
Ian T. W. Flynn, Sean I. Peters
wiley   +1 more source

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

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

Effects of Mineralogy and UV Radiation on the Detectability of Amino Acids Within the Martian Regolith: The Case for a Combined Chromatographical and Spectroscopical Approach

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract Amino acids are an extremely heterogeneous group of biomolecules essential for life on Earth. Their biosignatures are expected to be easily degraded on the Martian surface as the absence of a thick atmosphere and a magnetosphere leads to most of the solar radiation directly reaching its surface.
Miguel Arribas Tiemblo   +3 more
wiley   +1 more source

The SIMPSONS project: An integrated Mars transportation system [PDF]

open access: yes
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

The origin of alteration “orangettes” in Dhofar 019: Implications for the age and aqueous history of the shergottites [PDF]

open access: yes, 2017
The shergottites are the largest group of Martian meteorites, and the only group that has not been found to contain definitive evidence of Martian aqueous alteration.
Hallis, L.J.   +3 more
core   +1 more source

Magnetic Flux Ropes at Mars and Their Impacts on Heavy Ion Escape

open access: yesGeophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract Flux ropes (FRs), ubiquitous helical magnetic structures in solar system plasmas, are important to energy and particle transport. At Mars, where global intrinsic magnetic fields are absent, FRs form through magnetic reconnection (MR) and magnetospheric or ionospheric boundary wave instabilities (BWIs), but their role in ion escape remains ...
Jinqiao Fan   +8 more
wiley   +1 more source

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