Mars exhibits diverse surface changes at all latitudes and all seasons. Active processes
include impact cratering, aeolian sand and dust transport, a variety of slope processes …

Recent studies of martian dune and non-dune gullies have suggested a seasonal control on
present-day gully activity. The timing of current gully activity, especially activity involving the …

A decade of high-resolution monitoring has revealed extensive activity in fresh Martian
gullies. Flows within the gullies are diverse: they can be relatively light, neutral or dark …

Gully landforms are commonly taken as evidence for surface liquid water in the recent
geological history of Mars. Repeat observations with the High Resolution Imaging Science …

Fresh‐appearing gully deposits are found at tens of sites in the southern hemisphere of
Mars. These deposits have latitudinal and azimuthal dependences similar to the overall …

The formation process for Martian gullies is a critical unknown for understanding recent
climate conditions. Leading hypotheses include formation by snowmelt in a past climate, or …

Long-term monitoring of dune/non-dune gullies has substantiated extensive and diversified
morphological changes whose timing correlates with the time of removal of CO 2 frost …

Over 100 Martian gully sites were analyzed using orbital data collected by the Compact
Reconnaissance Imaging Spectrometer for Mars (CRISM) and High Resolution Imaging …

Young gullies and gully deposits on walls of martian craters have been cited as evidence
that liquid water flowed on the surface of Mars relatively recently. Effects of variable …

The penetration depth of broad spectrum solar radiation (300 nm–1100 nm) in ices relevant
to Mars has been measured in the laboratory for the first time. These ices include carbon …