Public domain
The Bedrock Riddles of Nili Fossae
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This image of the Nili Fossae region, to the west of the great Isidis basin, shows layered bedrock with many impact craters. Nili Fossae is one of the most mineralogically important sites on Mars. Remote observations by the infrared spectrometer onboard MRO (called CRISM) suggest the layers in the ancient craters contain clays, carbonates, and iron oxides, perhaps due to hydrothermal alteration of the crust.
NASA Image and Video Library’s own descriptionCredit lineThe Bedrock Riddles of Nili Fossae. NASA/JPL, 2019-09-05. Public domain. ID: PIA23452.
