Ever since robotic explorers began visiting the Red Planet during the 1960s and ‘70s, scientists have puzzled over Mars’ surface features. These included flow channels, valleys, lakebeds, and deltas ...

Mars has long looked like a dead world, but Curiosity’s decade of fieldwork has steadily revealed a planet that once offered ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: NASA/JPL-Caltech/UArizona The thick, mineral-rich layers of clay found on Mars suggest ...

Scientists have been arguing for years about ambiguous radar scans of Mars’ south pole. Do they reveal underground lakes of liquid water? Or something else? Two new papers out this week have added ...

Searching for water on Mars often feels like chasing a flicker of hope in a cold and quiet world. You read about dried ...

Scientists studying images from The University of Arizona-led High Resolution Imaging Experiment camera on NASA’s Mars Reconnaissance Orbiter have discovered never-before-seen impact “megabreccia” and ...

Scientists excited about exploring former lakes on Mars may have more opportunities to investigate traces of life there than previously thought. Could most of Mars’s former lakes still lie waiting to ...

Is Mars home to an underwater lake? Different researchers are reaching different conclusions. Some say remote sensing from the Mars Express orbiter shows liquid water in an underground lake at Mars’ ...

A clay-rich mesa in the Hellas basin of Mars. The blue color near the rim is aluminum bearing clays. The red-orange color below that is iron and magnesium bearing clays. The image captures an area ...

Recent studies reported the discovery of lakes of liquid water below the polar ice caps on Mars, but others later refuted the find. Fueling the debate are two new independent studies, which have ...

Smithsonian scientists study saline lakes in the Chilean desert to travel back in time to ancient Earth and beyond Emma Saaty This saline pond system in the Salar de Llamara region of northern Chile’s ...