| People | Locations | Statistics |
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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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Pajola, Maurizio
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2024DART Impact Ejecta Plume Evolution: Implications for Dimorphoscitations
- 2023Rubble-pile structural and dynamical evolution under YORP and the pathway to a binary system
- 2023Rubble-pile structural and dynamical evolution under YORP and the pathway to a binary system
- 2021Influence of the body composition on the evolution of ejecta in the Didymos-Dimorphos binary system
- 2020Mini-Craters on (101955) Bennu's Boulders: Deriving the Impact Strength of C-Type Objects
- 2020Bennu's near-Earth lifetime of 1.75 million years inferred from craters on its boulderscitations
- 2019Radar evidence of subglacial liquid water on Mars
- 2018Radar evidence of subglacial liquid water on Marscitations
Places of action
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article
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 MARSIS (Mars Advanced Radar for Subsurface and Ionosphere Sounding) instrument, 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 are evident within a well-defined, 20-kilometer-wide zone centered at 193°E, 81°S, which is surrounded by much less reflective areas. Quantitative analysis of the radar signals shows that this bright feature has high relative dielectric permittivity (>15), matching that of water-bearing materials. We interpret this feature as a stable body of liquid water on Mars....