[NASA] Although gullies are most common in the middle latitudes of Mars, they are also found in equatorial regions. This image shows a 3-kilometer-wide impact crater with gullies all along […]
gullies
Posted inAstrogeology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Mars, Status Report
Gullies On Martian Slopes
The formation of gullies on Martian slopes is still under debate. Potential mechanisms include the melting of surface water ice, groundwater outbursts, or dry mass wasting processes (landslides).
Posted inAstrogeology, Atmospheres, Climate, Weather, Desert Worlds, Icy Worlds, Imaging & Spectroscopy, Mars, Status Report
Wide Gullies In Terra Cimmeria On Mars
The objective of this observation is to examine a group of gullies that are quite wide, but have short channels, on the eastern side of an impact crater.
Posted inAstrogeology, Atmospheres, Climate, Weather, Caves, Craters, Mountains, Subsurface, Lava Tubes, Desert Worlds, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Mars, Missions & Hardware, Status Report
Active High-Latitude Dune-Gullies On Mars
Gully and defrosting activity have been visible here along the edge of a dune field, along with blocks of frost. Observations of the same area help us check for repeat […]
Posted inAstrogeology, Desert Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Mars, Status Report
Monitoring Active Gullies On Mars From Orbit
Gullies are common on steep slopes of many impact craters on Mars. When gullies were first observed, there was a lot of excitement surrounding them because similar features form on […]
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Habitable Zones, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Mars, Press Release
New Images Suggest Present-Day Sources of Liquid Water on Mars
In what could turn out to be a landmark discovery in the history of Mars exploration, imaging scientists using data from NASA’s Mars Global Surveyor spacecraft have recently observed features […]