Results 61 to 70 of about 165,848 (175)

A Study of Kelvin‐Helmholtz Instability at Unmagnetized Planets by Finite Larmor Radius MHD

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Kelvin–Helmholtz instability (KHI) at unmagnetized planetary ionopauses plays a key role in driving solar wind–ionosphere coupling and planetary ion escape. We investigate KHI using a two‐dimensional finite Larmor radius (FLR) MHD model.
Caiyi Fei, Maodong Yan, Jiuhou Lei
wiley   +1 more source

Water-driven Accessible Potential Karstic Caves in Hebrus Valles, Mars: Implications for Subsurface Habitability

open access: yesThe Astrophysical Journal Letters
The Hebrus Valles region on Mars exhibits geomorphological indicators of past aqueous activity, such as fluvial channels and aligned sinkholes. While Martian skylights have mostly been linked to volcanic or tectonic origins, caves formed by water ...
Ravi Sharma   +13 more
doaj   +1 more source

Unusual Enhancement in He(23S) Airglow Brightness Associated With Interplanetary Magnetic Field Northward Turnings During the 2025 New Year's Day Storm

open access: yesGeophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract The upper thermosphere is important in the context of space weather, but continuous monitoring of the thermosphere at high latitudes remains limited despite its strong variations associated with geomagnetic activity. Orthohelium, He(23S), is found from the upper thermosphere to lower exosphere, and is a promising tracer of atmospheric dynamics.
Takanori Nishiyama   +6 more
wiley   +1 more source

Erosion assessment with Martian dust

open access: yes, 2023
Safe and long-lasting extraterrestrial life is based on permanent human settlements on other planets or satellites, which imposes reliable operating life and reduces overhaul and maintenance of systems and structures.
Suman, A.   +3 more
core   +1 more source

Life on Mars? The physiological perspective

open access: yes
Experimental Physiology, EarlyView.
Ronan M. G. Berg, Damian M. Bailey
wiley   +1 more source

Martian‑Regolith Simulant Confined Nanogenerators for Wireless Tactile Sensing for Human‐Machine Interface

open access: yesSmall, Volume 22, Issue 57, 13 October 2026.
A Martian regolith‐simulant/PDMS triboelectric nanogenerator is developed as an ISRU‐inspired, self‐powered tactile sensor for wireless human–machine interface applications. ABSTRACT Achieving a sustainable energy system for space missions remains challenging due to the continued reliance on Earth‐supplied materials.
Shidhin Mappoli   +2 more
wiley   +1 more source

Resultant Force on Grains of a Real Sand Dune: How to Measure It?

open access: yesGeophysical Research Letters
Barchan dunes usually appear under the action of one‐directional fluid flows, being found on Earth, Mars, and other celestial bodies; however, although ubiquitous in nature, understanding dune dynamics at the grain scale is challenging due to the vast ...
R. F. Miotto   +4 more
doaj   +1 more source

GIS analyses of Martian satellite imageries and topographic data

open access: yesThe Journal of the Geological Society of Japan, 2012
A large amount of satellite imagery is now available for the surface of Mars; this imagery has spatial resolutions up to 25 cm/pixel, and a Digital Terrain Model (DTM) has been constructed to allow the analysis of Martian topography. These data are important for studies of geological and geomorphological processes on Mars, and may form the basis of ...
Goto K., KOMATSU, Goro, Saito H.
openaire   +3 more sources

The MEDUSA and MicroMED Experiments for the ExoMars Space Programme to Perform In Situ Analysis of Martian Dust [PDF]

open access: yes, 2011
This thesis describes the work for the PhD in Aerospace, Naval and Total Quality Management of the University of Naples “Federico II” from 2008 to 2011. The work was mostly performed at National Institute of Astrophysics (INAF) - Astronomical Observatory
Ventura, Sergio
core   +1 more source

Microsatellite Constellation Design for Global Mars Observation

open access: yesApplied Sciences
Imaging of Mars allows for the study of its geology and climate, the detection of traces of past water and potential conditions conducive to life, and the selection of safe landing sites for future missions.
Alicja Antosiak, Michał Kędzierski
doaj   +1 more source

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