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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Frigeri, Alessandro
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2021Mineralogical implications for the 1-micron feature in the refined average spectrum of Ceres
- 2020Fresh emplacement of hydrated sodium chloride on Ceres from ascending salty fluidscitations
- 2019Radar evidence of subglacial liquid water on Mars
- 2013Tangible 3D printouts of scientific data volumes with FOSS - an emerging field for research
- 2012Insights from the correlation of the preliminary Geologic and Mineralogic maps of Vesta from the Dawn mission data
- 2012Three Dimensional Structure of the Mars North Polar Basal Unit from MARSIS data
- 2007Marsis Data Inversion Approach: Preliminary Results on Mars South Polar Region
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document
Radar evidence of subglacial liquid water on Mars
Abstract
The presence of liquid water at the base of the Martian polar caps has long been suspected but not observed. We surveyed the Planum Australe region using the Mars Advanced Radar for Subsurface and Ionosphere Sounding, a low-frequency radar on the Mars Express spacecraft. Radar profiles collected between May 2012 and December 2015, contain evidence of liquid water trapped below the ice of the South Polar Layered Deposits. Anomalously bright subsurface reflections were found within a well-defined, 20km wide zone centered at 193°E, 81°S, surrounded by much less reflective areas. Quantitative analysis of the radar signals shows that this bright feature has high dielectric permittivity >15, matching water-bearing materials. We interpret this feature as a stable body of liquid water on Mars....