Results 181 to 190 of about 109,917 (327)

Barchans Interacting With Dune‐Size Obstacles: Details of the Fluid Flow and Motion of Grains

open access: yesJournal of Geophysical Research: Earth Surface, Volume 130, Issue 6, June 2025.
Abstract We investigate details of the interaction of subaqueous barchans with dune‐size obstacles by carrying out numerical simulations where the fluid is solved at the grain scale and the motions of individual grains are computed at all time steps. With the outputs, we analyze the disturbances of the fluid flow, the trajectories of grains, and the ...
N. C. Lima   +3 more
wiley   +1 more source

CO2: Adsorption on palagonite and the Martian regolith [PDF]

open access: yes
Possible scenarios for the evolution of the Martian climate are discussed. In the interest of determining an upper limit on the absorptive capacity of the Martian regolith, researchers examined the results of Fanale and Cannon (1971, 1974) for CO2 ...
Fanale, Fraser P.   +2 more
core   +1 more source

Evidence for phosphate metasomatism in an olivine‐rich achondrites

open access: yesMeteoritics &Planetary Science, Volume 60, Issue 6, Page 1302-1317, June 2025.
Abstract Brachinites, brachinite‐like achondrites (BLA), and other similar primitive achondrites offer important constraints on differentiation processes of the earliest formed planetesimals, as they quenched amidst early differentiation processes on their parent body. Geochemical data for all major mineral phases in two previously poorly characterized
Robert W. Nicklas   +5 more
wiley   +1 more source

Revealing the CME Impact on the Martian Nightside Ionosphere Based on MAVEN and Tianwen-1 Observations

open access: yesThe Astrophysical Journal
Due to the absence of an Earth-like dipole magnetic field, the impact of coronal mass ejections (CMEs) on the Martian nightside ionosphere differs from that on Earth and is still not well understood.
Longhui Liu   +8 more
doaj   +1 more source

Measurement of the Abundance of CO_{2} in the Martian Atmosphere

open access: bronze, 1969
N. P. Carleton   +4 more
openalex   +1 more source

Possible dynamical mechanisms for the Martian polar warming phenomenon [PDF]

open access: yes
The research performed under NASA contract NAGW-727 falls into three major categories, i.e., dynamical modeling of the Martian polar warming phenomenon, studies of dust and water transport associated with a Martian polar warming, and studies of the ...
Barnes, Jeffrey R.
core   +1 more source

A complete inventory of institutional and public meteorite collections in Switzerland

open access: yesMeteoritics &Planetary Science, Volume 60, Issue 6, Page 1384-1410, June 2025.
Abstract Museums and universities are important for collecting, maintaining, and curating meteorites. To make specimens known and available for research, inventorying and optimal curation are important. However, not all meteorite collections are well curated, especially in smaller institutions.
J. Eschrig   +2 more
wiley   +1 more source

An Analytical and Numerical Study of the Martian Planetary Boundary Layer Over Slopes [PDF]

open access: hybrid, 1973
Steven L. Blumsack   +2 more
openalex   +1 more source

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