Lunar Rivers

Science  19 Jul 1968:
Vol. 161, Issue 3838, pp. 266-269
DOI: 10.1126/science.161.3838.266


Mature meanders in lunar sinuous rills strongly suggests that the rills are features of surface erosion by water. Such erosion could occur under a pressurizing ice cover in the absence of a lunar atmosphere. Water, outgassed from the lunar interior and trapped beneath a layer of permafrost, could be released by a meteoritic impact and overflow the crater to form an ice-covered river. A sinuous rill could be eroded in about 100 years.