Results 21 to 30 of about 1,240 (223)

Localization and Surface Characterization by Zhurong Mars Rover at Utopia Planitia [PDF]

open access: gold, 2021
Abstract China’s first Mars rover, Zhurong, has successfully touched down on the southern Utopia Planitia of Mars at 109.925° E, 25.066° N, and since performed cooperative multiscale investigations with the Tianwen-1 orbiter. Here we present primary localization and surface characterization results based on complementary data of the first 60 ...
Liang Ding   +47 more
openaire   +2 more sources

Topography within circular grabens: Implications for polygon origin, Utopia Planitia, Mars [PDF]

open access: bronzeGeophysical Research Letters, 2002
Very large, fracture‐bounded polygons occur in Acidalia and Utopia Planitiae, Mars. Two models for the origin of these large polygons postulate drape folding of a sedimentary cover material over an uneven buried surface, with the strain enhancement needed to explain the large size due to differential compaction.
Debra L. Buczkowski, George E. McGill
openaire   +2 more sources

Possible pingos and a periglacial landscape in northwest Utopia Planitia

open access: greenIcarus, 2005
Hydrostatic (closed-system) pingos are small, elongate to circular, ice-cored mounds that are perennial features of some periglacial landscapes. The growth and development of hydrostatic pingos is contingent upon the presence of surface water, freezing processes and of deep, continuous, ice-cemented permafrost.
Richard J. Soare   +2 more
openaire   +3 more sources

Buried palaeo-polygonal terrain detected underneath Utopia Planitia on Mars by the Zhurong radar [PDF]

open access: hybridNature Astronomy, 2023
AbstractAs the largest basin on Mars, Utopia Planitia has both experienced and recorded variations of the Martian palaeoclimate. Layered subsurface structures have been identified by ground-penetrating radar in southern Utopia Planitia but lateral variations of the subsurface, potentially linked to the Martian palaeoclimatic evolution, have not been ...
Lei Zhang   +35 more
openaire   +2 more sources

Martian thermal-contraction polygons as sounders of subsurface properties in Utopia Planitia

open access: gold
On Earth, temperature decreases can cause the thermal contraction of ice-cemented ground. This forms polygonal networks of surficial fractures – called ‘thermal-contraction polygons’ (Washburn, 1956). Polygons exhibit different morphologies with time (Black, 1954): initially showing no relief (‘flat-centred ...
Conway, Susan J.   +3 more
openaire   +3 more sources

Establishment of Safety Evaluation Factors for Dust Storms in the Landing Area Selection for Tianwen‐3 Mission

open access: yesEarth and Space Science
China's Tianwen‐3 mission is expected to be launched around 2028, making it the first Mars sample return mission. Dust storms occurring in all seasons on Mars can affect the accuracy and safety of the landing and takeoff phases of Mars sampling missions.
Puzheng Wen   +3 more
doaj   +2 more sources

Shallow Water Ice Detection From SHARAD Data in Central Utopia Planitia, Mars [PDF]

open access: bronzeJournal of Geophysical Research: Planets
AbstractOne of the key scientific goals of China's first Mars mission Tianwen‐1 is to search for ground ice. This study focuses on investigating potential water ice reservoirs in the vicinity of the landing site of the Zhurong rover to provide geological context and references for data interpretation. Our study area is centered on Utopia Planitia (UP),
Xiaoting Xu   +7 more
openaire   +2 more sources

Geology of the Southern Utopia Planitia Highland-Lowland Boundary Plain: First Year Results and Second Year Plan [PDF]

open access: green, 2008
The southern Utopia highland-lowland boundary (HLB) extends >1500 km westward from northern Nepenthes Mensae to the topographic saddle that separates Isidis and Utopia Planitiae.
Hare, T. M.   +2 more
core   +2 more sources

Methane Seepage on Mars: Where to Look and Why. [PDF]

open access: yesAstrobiology, 2017
Methane on Mars is a topic of special interest because of its potential association with microbial life. The variable detections of methane by the Curiosity rover, orbiters, and terrestrial telescopes, coupled with methane's short lifetime in the martian
Oehler DZ, Etiope G.
europepmc   +3 more sources

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