"It's been such a puzzle that there was liquid water on Mars, because Mars is further from the sun, and also, the sun was ...

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

Discoveries of clay minerals in Martian mounds by researchers indicate that Mars once had large bodies of water billions of ...

Scientists confirm the existence of liquid water on Mars, altering our understanding of the Red Planet. Evidence of wave ...

The 3.7-billion-year-old formations in the planet's Gale Crater suggest the presence of long-gone bodies of liquid water, with no ice covering the surface ...

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

The northern plains of Mars, marked by thousands of mounds and hills, hold significant evidence of the planet's watery past.

Researchers discover thousands of clay-rich hills on Mars, revealing evidence of ancient water and transforming our ...

Thousands of mysterious clay mounds found on Mars were formed by ancient water on the Red Planet's barren northern plains, ...

Images of Mars taken from orbit show thousands of mounds in a region sculpted by water billions of years ago. A robotic ...

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.

NASA is working on an exciting mission to send humans to Mars in the next few decades. To make this happen, the agency is ...