Seismic readings of the interior of Mars strongly suggest large quantities of water buried 6 to 12 miles underground.

More than 3 billion years ago, Mars intermittently had liquid water on its surface. After the planet lost much of its ...

Water once existed in abundance of at the surface of Mars. How much of that water has been stored in the planet's crust is still unclear, according to a new analysis.

Mars might hold enough subsurface water to cover its surface in a global ocean between 0.62 to 1.24 miles (1 to 2 kilometers) ...

Mars – dusty, dry, and desert-clad – was once so rich in water it had not just lakes, but oceans, according to a new study.

Researchers have found new evidence for a massive subsurface ocean on Mars, highlighting the possibility of microbial life ...

Mars has fascinated people for centuries, not only because it is our closest neighbor in space but also because of its ...

expanding the lower limit found by the previous study. The amount of water present in Mars's crust is a question that further missions—to conduct more detailed geological analysis and ...

A rock on Mars spilled a surprising yellow treasure after Curiosity accidentally cracked through its unremarkable exterior.

Mars may once have held enough water to fill oceans and form coastlines. The planet’s red dust contains water and likely formed in cold conditions.