Public domain
Gullies on the Wall of an Unnamed Crater in Utopia Planitia
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This enhanced-color image from NASA Mars Reconnaissance Orbiter shows gullies in the northern wall of an unnamed crater in Utopia Planitia. The banked, sinuous shape of the gully channels suggest that water was involved in their formation. The source of this water however is a subject of debate. Hypotheses include melting of snow or near-surface ground ice. Other features also suggest the past (and possibly present) presence of snow or ground ice in this region.
NASA Image and Video Library’s own descriptionCredit lineGullies on the Wall of an Unnamed Crater in Utopia Planitia. NASA/JPL, 2015-07-29. Public domain. ID: PIA19862.
