Public domain
A Window into the Past
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
The layered sedimentary deposits inside the giant canyons of Mars have puzzled scientists for decades. These light toned deposits have fine, horizontal laminations that are unlike the rugged rim rock of the Valles Marineris as seen by NASA's Mars Reconnaisance Orbiter (MRO). Various ideas for the origin of the layered sediments have suggested lake deposits, wind blown dust and sand, or volcanic materials that erupted after the canyon was formed, and possibly filled with water.
NASA Image and Video Library’s own descriptionCredit lineA Window into the Past. NASA/JPL, 2017-10-23. Public domain. ID: PIA22051.
