Public domain
Dao and Niger Valles
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
Today's VIS image shows a small portion of both Dao Vallis (middle of image) and Niger Vallis (bottom of image). Arising from the volcano Hadriacus Mons (top of image), Dao Vallis is approximately 1200km (750 miles) long. Niger Vallis is 333 km (207 miles) long. It has been proposed that heating of the region due to volcanic activity melted subsurface ice which was released to the surface to carve the two channels.
NASA Image and Video Library’s own descriptionSubjects
Credit lineDao and Niger Valles. NASA/JPL, 2023-03-28. Public domain. ID: PIA25852.
