Scientists discover signs of an ancient glacier on Mars

Mars rover data confirms ancient lake sediments on red planet

Scientists Discover Massive Reservoir of Water Hiding on Mars

Could a Mud Lake on Mars Be Hiding Signs of Ancient Life? - Slashdot

Remains of an ancient glacier spotted on Mars

Mars Had an Ancient Asteroid Impact Like the One That Killed the Dinosaurs, Scientists Discover

This sure looks like the movements of a glacier across ancient Mars