Did Mars have lakes and rivers during a single period or over separate periods? This is what a recent study published in ...

The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for ...

Scientists are rethinking a long-held belief that the liquid responsible for shaping Mars' surface must have been water. For decades, evidence like massive outflow channels, ancient river valleys ...

Images of Mars taken from orbit show thousands of mounds in a region sculpted by water billions of years ago. A robotic mission may investigate the area one day.

The car-sized Curiosity rover has spotted evidence of once quite hospitable environs on Mars.

Mars haunts us as a vision of a planet gone wrong. It was once warm and wet, with rivers flowing across its surface and ...

But while Earth’s rivers and lakes are of liquid water, on Titan—the largest moon of Saturn—it’s liquid methane that sculpts the surface. Add Mars to the mix—where there’s a lot of ...

Harvard scientists explain how Mars had warm spells billions of years ago, allowing rivers and lakes to exist.

The area containing the clay-bearing mounds is geologically connected to Oxia Planum, which is where Rosalind Franklin will be headed when it launches in 2028 in search of past life on Mars. It now ...

New research from the University of Arizona suggests an unlikely connection between the Lower Colorado River Basin and the planet Mars. It’s a link that spans 140 million miles through the cold, dark ...

The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for decades. Now, researchers think they have a good explanation for a warmer, ...