Results 101 to 110 of about 51,564 (234)

Formation and degradation of chaotic terrain in the Galaxias regions of Mars: implications for near-surface storage of ice [PDF]

, 2018
Galaxias Chaos is a region of low plateaus separated by narrow fractures – a chaotic terrain. Galaxias Mensae and Galaxias Colles are characterised by mesa and knobby terrains of individual landforms, or small assemblages, separated by plains.
Boynton, Bruno, Bruno, Carr, Carr, Carr, Christensen, Colman Gallagher, De Hon, De Pablo, Fagents, Gwinner, Hamilton, Hamilton, Hammer, Hammer, Hartmann, Hauber, Hopper, Jaumann, Komatsu, Lanagan, Lanz, Malin, Matt Balme, Mouginis-Mark, Netoff, Oehler, Pedersen, Pedersen, Pedersen, Platz, Plescia, Richard Soare, Sharp, Skinner, Smith, Stuurman, Susan J. Conway, Vaucher, Wilson, Wilson   +41 more
core   +3 more sources

Deciphering Martian Flood Infiltration Processes at Hebrus Valles: Insights From Laboratory Experiments and Remote Sensing Observations

Journal of Geophysical Research: Planets, Volume 129, Issue 1, January 2024.
Abstract In evaluating the unique geomorphology of Hebrus Valles on Mars, an outflow channel southeast of Utopia Planitia, we investigated the role of fluvial dynamics in forming subsurface conduits. Unlike typical Martian channels that terminate under younger sediment rocks, Hebrus Valles retains its downstream features, thus offering a window into ...
F. Costard, J. A. P. Rodriguez, E. Godin, A. Séjourné, J. S. Kargel   +4 more
wiley   +1 more source

Equatorial locations of water on Mars: Improved resolution maps based on Mars Odyssey Neutron Spectrometer data [PDF]

, 2017
We present a map of the near subsurface hydrogen distribution on Mars, based on epithermal neutron data from the Mars Odyssey Neutron Spectrometer. The map's spatial resolution is approximately improved two-fold via a new form of the pixon image reconstruction technique. We discover hydrogen-rich mineralogy far from the poles, including ~10 wt. % water
arxiv   +1 more source

Martian northern plains [PDF]

, 1993
"... contains papers that have been accepted for the Workshop on the Martian Northern Plains: Sedimentological, Periglacial, and Paleoclimatic Evolution, August 12-14, 1993, in Fairbanks, Alaska ..."sponsored by MSATT Study Group, Lunar and Planetary ...

core  

A Comparison of Relict and Active Terrestrial Patterned Ground as an Analog for Mars [PDF]

, 2022
Patterned ground is a ubiquitous landform in periglacial regions of Earth and is also present across the mid to high latitudes of Mars. The association of terrestrial patterned ground to the presence of subsurface water ice in the form of permafrost that
Knightly, John Paul, Jr.
core   +1 more source

Variation of crater morphological parameters in the landing area of Tianwen-1: relationships with the geological environment and climate change

Earth, Planets and Space
The Zhurong rover of the Tianwen-1 mission successfully landed in the southern part of the Utopian Planitia and the northern region of the dichotomy boundary.
Yu Yang, Yi Wang, Bo Li, Zongcheng Ling, Yang Liu, Shaojie Qu, Shengbo Chen   +6 more
doaj   +1 more source

Pluto's global surface composition through pixel-by-pixel Hapke modeling of New Horizons Ralph/LEISA data [PDF]

, 2016
On July 14th 2015, NASA's New Horizons mission gave us an unprecedented detailed view of the Pluto system. The complex compositional diversity of Pluto's encounter hemisphere was revealed by the Ralph/LEISA infrared spectrometer on board of New Horizons.
arxiv   +1 more source

Martian impact crater ejecta morphologies as indicators of the distribution of subsurface volatiles [PDF]

, 2003
Fresh Martian impact craters display a variety of ejecta blanket morphologies. The fluidized appearance of most fresh ejecta types is commonly ascribed to heating and vaporization of subsurface volatiles during crater formation.
Barlow, Nadine G., Perez, Carola B.
core   +2 more sources

Approaching Utopia: Strong Truthfulness and Externality-Resistant Mechanisms [PDF]

arXiv, 2012
We introduce and study strongly truthful mechanisms and their applications. We use strongly truthful mechanisms as a tool for implementation in undominated strategies for several problems,including the design of externality resistant auctions and a variant of multi-dimensional scheduling.
arxiv  

Prospective Lava Tubes at Hellas Planitia [PDF]

Journal of the Washington Academy of Sciences, 2019, 2020
After surveying 1,500 images from MRO, this investigation has identified three candidate lava tubes in the vicinity of Hadriacus Mons as prospective sites for manned exploration. This investigation, therefore, concluded that terrestrial lava tubes can be leveraged for radiation shielding and, accordingly, that the candidate lava tubes on Mars (as well ...
arxiv