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

The area containing the clay-bearing mounds is geologically connected to Oxia Planum, which is where Rosalind Franklin will ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

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 ...

The new work suggests that the edge of the dichotomy was eroded back by hundreds of kilometers during the time when an ocean ...

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 ...

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

Many believe these low-lying plains were once host to giant lakes, rivers, or possibly oceans. Accumulating evidence increases the idea that Mars must have been much more wet a place during the ...

Related: Ocean's worth of water may be buried within Mars — but can we get to it? On Earth — for example, in the western United States — we find such hills in the form of buttes and mesas in ...