The tantalizing prospect of a readable record of martian climatic variations has driven
decades of work toward deciphering the stratigraphy of the martian polar layered deposits …

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 …

In its polar layered deposits (PLD), Mars possesses a record of its recent climate, analogous
to terrestrial ice sheets containing climate records on Earth. Each PLD is greater than 2​ km …

The Shallow Radar (SHARAD) on the Mars Reconnaissance Orbiter has imaged the internal
stratigraphy of the north polar layered deposits of Mars. Radar reflections within the deposits …

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 …

The climate of Mars likely evolved from a warmer, wetter early state to the cold, arid current
state. However, no solutions for this evolution have previously been found to satisfy the …

Although ice in the Martian midlatitudes is typically covered by a layer of dust or regolith, it is
exposed in some locations by fresh impact craters or in erosional scarps. In both cases, the …

The rapid and nonintrusive deployment of seismic sensors for near-surface geophysical
surveys is of interest to make data acquisition efficient and to operate in a wide variety of …

Mars was warmer and wetter during the early to middle Noachian, before a hydrologic and
climatic transition in the late Noachian led to a decrease in erosion rates, a change in valley …

The sulphate-rich deposits at Meridiani Planum, Mars, discovered by the rover Opportunity,
were proposed to be playa evaporites that had been reworked by eolian processes …