Public domain
Trundling Boulders
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This picture of the rim of Eos Chasma in Valles Marineris shows active erosion of the Martian surface. Layered bedrock is exposed in a steep cliff on a spur of the canyon rim. Dark layers in this cliff are made up of large boulders up to 4 meters in diameter. The boulders are lined up along specific horizons, presumably individual lava flows, and are perched to descend down into the canyon upon the slightest disturbance.
NASA Image and Video Library’s own descriptionCredit lineTrundling Boulders. NASA/JPL, 2016-11-09. Public domain. ID: PIA21203.
