Search Publications
Using MARSIS signal attenuation to assess the presence of South Polar Layered Deposit subglacial brines
Orosei, Roberto; Caprarelli, Graziella; Pettinelli, Elena +7 more
Knowledge of the physical and thermal properties of the South Polar Layer Deposits (SPLD) is key to constrain the source of bright basal reflections at Ultimi Scopuli detected by the MARSIS (Mars Advanced Radar for Subsurface and Ionosphere Sounding) radar sounder. Here we present a detailed analysis of attenuation, based on data acquired by MARSI…
Alternate oscillations of Martian hydrogen and oxygen upper atmospheres during a major dust storm
Tsuchiya, Fuminori; Yoshida, Nao; Terada, Naoki +11 more
Dust storms on Mars play a role in transporting water from its lower to upper atmosphere, seasonally enhancing hydrogen escape. However, it remains unclear how water is diurnally transported during a dust storm and how its elements, hydrogen and oxygen, are subsequently influenced in the upper atmosphere. Here, we use multi-spacecraft and space te…
The Tharsis mantle source of depleted shergottites revealed by 90 million impact craters
Baratoux, D.; Towner, M. C.; Lagain, A. +8 more
The only martian rock samples on Earth are meteorites ejected from the surface of Mars by asteroid impacts. The locations and geological contexts of the launch sites are currently unknown. Determining the impact locations is essential to unravel the relations between the evolution of the martian interior and its surface. Here we adapt a Crater Det…
Geology of the InSight landing site on Mars
Rodriguez, S.; Forget, F.; Hauber, E. +44 more
The Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) spacecraft landed successfully on Mars and imaged the surface to characterize the surficial geology. Here we report on the geology and subsurface structure of the landing site to aid in situ geophysical investigations. InSight landed in a degraded impact cr…
New Martian valley network volume estimate consistent with ancient ocean and warm and wet climate
Howard, Alan D.; Luo, Wei; Cang, Xuezhi
The volume of Martian valley network (VN) cavity and the amount of water needed to create the cavity by erosion are of significant importance for understanding the early Martian climate, the style and rate of hydrologic cycling, and the possibility of an ancient ocean. However, previous attempts at estimating these two quantities were based on sel…
Strong coronal channelling and interplanetary evolution of a solar storm up to Earth and Mars
Dumbović, Mateja; Temmer, Manuela; Vršnak, Bojan +15 more
The severe geomagnetic effects of solar storms or coronal mass ejections (CMEs) are to a large degree determined by their propagation direction with respect to Earth. There is a lack of understanding of the processes that determine their non-radial propagation. Here we present a synthesis of data from seven different space missions of a fast CME, …