Sentences with phrase «martian gullies»

Examples of Martian Gullies.

Head and his colleagues have done field work in the Dry Valleys to better understand the processes that sculpt the Martian gullies.

A high - resolution image from the CTX camera on the Mars Reconnaissance Orbiter is draped over topography data to create a bird's - eye view of martian gullies, features thought to represent relatively recent flow of water on the surface of Mars.

By the beginning of the 21st century, the Mars Reconnaissance Orbiter boasted a camera capable of imaging objects only a few meters across, revealing the diversity of Martian gullies.

The Martian gullies, first discovered in 2000, are «a widespread and common feature» on Mars and usually occur «on slopes that face toward the poles,» according to the NASA statement.

Not exact matches

Once the rovers rolled out, they began exploring craters and hillsides, and eventually discovered gullies that may have been carved by liquid water during a warmer era of Martian history.

Images from MRO's High Resolution Imaging Science Experiment (HiRISE) camera show sand dunes with linear gullies covered by carbon - dioxide frost during the Martian winter.

The location of the linear gullies is on dunes that spend the Martian winter covered by carbon - dioxide frost.

The outdoor tests did not simulate Martian temperature and pressure, but calculations indicate the dry ice would act similarly in early Martian spring where the linear gullies form.

The images are like scattered postage stamps on the Martian map, Neukum says, and because the global photographic coverage is so crude, Malin's gullies and other fine features can be situated to within only five miles or so.

The creeping scratches cascading down the dune slopes are thought to be linear gullies formed by the dry ice that forms in Martian winters.

Found mostly on slopes or ridges, the gullies sparked long - running debates on whether they formed from groundwater seeping out of the martian surface or in dry landslides.

The researchers also think that the Antarctic gullies would be a good area for close - up study because of the relatively recent interaction between water and the Martian surface.