Public domain
Tractus Catena
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
Tractus Catena is a series of collapse pits and fractures south of Alba Mons as seen in this image from NASA 2001 Mars Odyssey spacecraft. The collapse pits, which run in two directions in this image, are typically indicative of volcanic lava tubes.
NASA Image and Video Library’s own descriptionSubjects
Credit lineTractus Catena. NASA/JPL, 2012-06-19. Public domain. ID: PIA15728.