Public domain
Valley Networks in the Ancient Martian Highlands
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This image from NASA Mars Reconnaissance Orbiter spacecraft the valley networks on Mars are terrains eroded by flowing water billions of years ago. Where bedrock is well exposed, a variety of colors due to altered minerals and polygonal patterns.
NASA Image and Video Library’s own descriptionCredit lineValley Networks in the Ancient Martian Highlands. NASA/JPL, 2016-05-18. Public domain. ID: PIA15880.