For decades, scientists have theorized about how Mars reached its current state. Many believe that the Red Planet's surface ...

Researchers have identified what they believe could be oceans' worth of water on Mars. There's just one snag: it's deep underground.The Latest Tech News, Delivered to Your Inbox ...

Volume of Water: If the findings are representative of Mars globally, there could be enough water to cover the entire planet in a layer about 1 to 2 kilometers deep. This volume suggests that Mars ...

Enough water to cover the surface of Mars has been discovered within the crust of the Red Planet by NASA's InSight mission. The ocean is buried between one and two kilometers (0.62 and 1.24 miles ...

Using seismic activity to probe the interior of Mars, geophysicists have found evidence for a large underground reservoir of liquid water — enough to fill oceans on the planet's surface.

Water has been detected on Mars that could harbor life 12 miles beneath the surface, according to new research. Seismic data from NASA's Insight Lander indicates deep, porous rock filled with ...

The good news is that there's a vast ocean of water under the surface of Mars – enough to cover the entire planet to a depth of a mile (1.6 km). The bad news is that this repository is so deep ...

A new study suggests Mars may be drenched beneath its surface, with enough water hiding in the cracks of underground rocks to form a global ocean.

A new study suggests there could be water miles under the dusty surface of Mars, with enough water to fill a global-sized ocean a mile deep.

According to research, the water most likely would have seeped from the surface billions of years ago, when Mars harbored rivers, lakes and possibly oceans.

The new images by the Curiosity rover on Mars show "dramatic evidence" of ancient groundwater in crisscrossing low ridges, ...

Researchers have identified what they believe could be oceans' worth of water on Mars. There's just one snag: it's deep underground.