Mars

Follow The Water

By Keith Cowing
July 25, 2006

NASA Mars Picture of the Day: Gullied Recesses

“This image shows gullies on the wall of a martian south mid-latitude impact crater. The channels in each gully head beneath an eroding overhang of layered rock, providing support for the hypothesis that someif not allmartian gullies result from release of groundwater to the surface.”

SpaceRef co-founder, Explorers Club Fellow, ex-NASA, Away Teams, Journalist, Space & Astrobiology, Lapsed climber.