HiPOD: An Ancient Valley Network

How the climate of Mars could have supported a warmer and wetter environment has been the subject of scientific debates for 40 years. A full-resolution enhanced color closeup reveals details in the bedrock and dunes on the valley floor (upper left). The bedrock of ancient Mars has been hardened and cemented by groundwater.

https://uahirise.org/hipod/ESP_049977_1610
NASA/JPL-Caltech/UArizona
#Mars #science #NASA