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Water on Mars, With a Grain of Salt: Local Heat Anomalies Are Required for Basal Melting of Ice at the South Pole Today
Recent analysis of radar data from the Mars Express spacecraft has interpreted bright subsurface radar reflections as indicators of local liquid water at the base of the south polar layered deposits
Exposed subsurface ice sheets in the Martian mid-latitudes
TLDR
Cliffs on Mars expose water ice sheets present just below the surface in many locations, and the vertical structure of Martian ice-rich deposits are expected to preserve a record of ice deposition and past climate.
Widespread excess ice in Arcadia Planitia, Mars
The distribution of subsurface water ice on Mars is a key constraint on past climate, while the volumetric concentration of buried ice (pore‐filling versus excess) provides information about the
Off-board augmented fusion for improved target detection and track
TLDR
A multiplatform distributed fusion architecture under development to provide enhanced cueing and sensor resource management is discussed, and the current status of ongoing testbed development activities are shown to provide insight into the proposed architecture.
The vanishing cryovolcanoes of Ceres
Ahuna Mons is a 4 km tall mountain on Ceres interpreted as a geologically young cryovolcanic dome. Other possible cryovolcanic features are more ambiguous, implying that cryovolcanism is only a
Preservation of Midlatitude Ice Sheets on Mars
Excess ice with a minimum age of tens of millions of years is widespread in Arcadia Planitia on Mars, and a similar deposit has been found in Utopia Planitia. The conditions that led to the formation
A Migration Model for the Polar Spiral Troughs of Mars
Mars' iconic polar spiral troughs are 400–1,000‐m‐deep depressions in the north polar layered deposits. As the north polar layered deposits accumulate, troughs migrate approximately poleward,
North polar trough formation due to in-situ erosion as a source of young ice in mid-latitudinal mantles on Mars
TLDR
The retention of the spiral pattern in surface and subsurface troughs is consistent with the megastructure’s stabilization before its partial burial, and could provide a valuable source of near-surface, clean ice for future human exploration.
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