The UA's HiRISE camera on NASA's Mars Reconnaissance Orbiter has spotted hundreds of deformation bands that are thought to have served as conduits for ancient groundwater flow in equatorial Mars, according to a new study published in GSA Bulletin by Chris Okubo of the USGS in Flagstaff and co-authors.
[right, deformation bands form linear ridges in this HiRISE image. Credit, NASA/JPL-CalTech, Univ. of Arizona]