Thousands of mounds and hills in Mars' barren northern plains are full of clay minerals, providing evidence that the rocks ...

The Mars2020 Perseverance Rover took about 8 years to complete here on Earth. Built at the Jet Propulsion Laboratory (JPL) in ...

The mounds lie north of a feature of Mars known as the Martian dichotomy, where the towering, ancient highlands of the southern hemisphere give way to shallower, younger plains that stretch across the ...