Antoine Séjourné

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The WISDOM (500MHz 3GHz) GPR is one of the instruments that have been selected as part of the Pasteur payload of ESA’s 2018 ExoMars Rover mission. One of the main scientific objectives of the mission is to characterize the nature of the shallow sub-surface on Mars and WISDOM has been designed to explore the first ~ 3 meters of the subsurface with a vertical(More)
Introduction: In the last few years, evidence of Mars being an ice-rich planet has become increasingly abundant. The mid-latitudes of Mars show Earth-like periglacial landforms. These include polygonal networks [1], periglacial debris-flows [2], pingos-like mounds [3] and thermokarst-like scalloped terrains [4]. We have studied the western part of Utopia(More)
The Tharsis region is the largest volcanic complex on Mars and in the Solar System. Young lava flows cover its surface (from the Amazonian period, less than 3 billion years ago) but its growth started during the Noachian era (more than 3.7 billion years ago). Its position has induced a reorientation of the planet with respect to its spin axis (true polar(More)
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