Public domain
Lines of Pits in Protonilus Mensae
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This observation shows a lobe-shaped debris apron emanating from a massif (shown in the upper left of the image) in the Protonilus Mensae region in the Northern Hemisphere of Mars. These aprons are composed of nearly pure water ice with a layer of debris on the surface protecting the ice from sublimation (going directly from a solid to gaseous state).
NASA Image and Video Library’s own descriptionCredit lineLines of Pits in Protonilus Mensae. NASA/JPL, 2021-12-20. Public domain. ID: PIA25084.
