Public domain
A Streamlined Form in Lethe Vallis
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This image shows a portion of Lethe Vallis, an outflow channel that also transported lava. Another investigation of this area (Balme et al., 2011) discovered a repeat pattern of dune-like forms in the channel interpreted as fluvial dunes (or, giant current ripples) which are dunes formed by flowing water. This is one of only a few places on Mars where these pristine-appearing landforms have been identified.
NASA Image and Video Library’s own descriptionCredit lineA Streamlined Form in Lethe Vallis. NASA/JPL, 2016-09-08. Public domain. ID: PIA21039.
