Public domain
Flowing Rivers on Ancient Mars
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This image of ridges in Aeolis Planum tells a story of ancient rivers and a Mars very different to that of today. River beds often get filled with gravel and the surrounding terrain is often built up of fine-grained mud from river overflows. The gravely river bottom and the fine-grained surroundings can lead to a strange phenomenon that geologists call inverted channels.
NASA Image and Video Library’s own descriptionCredit lineFlowing Rivers on Ancient Mars. NASA/JPL, 2024-01-31. Public domain. ID: PIA22822.
