Results 71 to 80 of about 51,564 (234)
Journal of Geophysical Research: Planets, Volume 130, Issue 3, March 2025.Abstract Recent observations by instruments aboard the ExoMars Trace Gas Orbiter (TGO) have revealed the seasonal presence of hydrogen chloride (HCl $\text{HCl}$) in the Martian atmosphere. This discovery may have important implications for Martian photochemistry as chlorine species are chemically active, and it may provide a link between the ...
K. Rajendran +7 more
wiley +1 more source
Anomalies of Density, Stresses, and the Gravitational Field in the Interior of Mars
, 2012 We determined the possible compensation depths for relief harmonics of different degrees and orders. The relief is shown to be completely compensated within the depth range of 0 to 1400 km.
A. S. Konopliv +14 more
core +1 more source
Constraints on the Origin of the Martian Dichotomy From Southern Highlands Marsquakes
Geophysical Research Letters, Volume 52, Issue 1, 16 January 2025.Abstract The Martian hemispheric dichotomy is delineated by significant differences in elevation and crustal thickness between the Northern Lowlands and Southern Highlands. Yet, its origin remains controversial. Here, we improve the signal‐to‐noise ratios and determine the locations of the low‐frequency marsquakes recorded during the InSight mission ...
Weijia Sun, Hrvoje Tkalčić
wiley +1 more source
Impacts of thrusting, extensional faulting, and glaciation on cratering records of Pluto's largest moon Charon: Implications for the evolution of Kuiper belt objects [PDF]
arXiv, 2022 Systematic geomorphological mapping and detailed landform analysis using the highest resolution images obtained by the New Horizons spacecraft reveal the presence of a range of differentiable terrains on Charon, the largest moon of Pluto, that were not examined in detail by the early studies.
arxiv
Primordial N2 provides a cosmochemical explanation for the existence of Sputnik Planitia, Pluto [PDF]
Icarus, vol. 313, pp. 79-92, 2018, 2018 The presence of N2 in the surface environment of Pluto is critical in creating Pluto's richness of features and processes. Here, we propose that the nitrogen atoms in the N2 observed on Pluto were accreted in that chemical form during the formation of Pluto.
arxiv +1 more source
Journal of Geophysical Research: Planets, Volume 130, Issue 1, January 2025.Abstract Subsurface ice in the mid‐latitude regions is a significant water inventory on present‐day Mars, and their volume and distribution are thought to have varied due to the orbitally induced paleoclimatic changes. Using high‐resolution satellite images, the present study explores the distributions of three presumed periglacial landforms (thermal ...
Takaki Sako +4 more
wiley +1 more source
Ambiguity in Utopian XR-Games. Basic Principles for the Design of Virtual Worlds [PDF]
arXiv, 2021 Utopian images in XR-games are often ambiguous. How can ambiguity be consciously designed in virtual worlds? What are the design principles for game designers? Ambiguity arises from discontinuity and decontextualization, from the deliberate omission of facts, and from the skillful superimposition of contradictory codes. An ontology of interactive media
arxiv
Curvature driven acceleration : a utopia or a reality ? [PDF]
Class.Quant.Grav.23:4159-4166,2006, 2005 The present work shows that a combination of nonlinear contribution from the Ricci curvature in Einstein field equations can drive a late time acceleration of expansion of the universe. The transit from the decelerated to the accelerated phase of expansion takes place smoothly without having to resort to a study of asymptotic behaviour.
arxiv +1 more source
Characterisation of Isidis Planitia and the Beagle 2 Landing Site on Mars [PDF]
, 2005 Isidis Planitia is a large impact basin on Mars. I have determined that the extensive numbers of sub-kilometre sized cones and cone chains in the basin are the result of deposition of sediments by retreating ice in a process analogous to terrestrial ...
Seabrook, Ashley Mark
core +1 more source
The First Global Catalog of Rockfall Locations on Mars
Geophysical Research Letters, Volume 51, Issue 24, 28 December 2024.Abstract Rockfalls are ubiquitous expressions of present‐day landscape evolution across the solar system. On Mars, their distribution has been proposed to indicate endo‐ and exogenic drivers, such as tectonic activity and solar‐driven thermal fatigue. Here, we present the first global catalog of 1,383 rockfall‐bearing locations on Mars, derived using ...
V. T. Bickel +5 more
wiley +1 more source