If true, water once held in Echus Chasma likely ran over the Martian surface to carve the impressive Kasei Valles, which extends over 3,000 kilometers to the north.

• 如果假设正确，艾彻斯裂谷中的水可能会流过火星表面，雕塑出凯西峡谷这个长达3000公里，令人印象深刻的峡谷。