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

The total volume of hidden water could flood the whole of Mars' surface with an ocean 1,700 to 2,560 feet [520 to 780 metres] deep, around the same volume of liquid that is contained within ...

Previous studies estimated that there could be enough water deep underground on Mars to cover the surface in a global ocean between 0.62 to 1.24 miles (1 and 2 kilometers) deep.

Dark “slope streaks,” likely resulting from dust avalanches, stretch across an area of Mars called Acheron Fossae in this ...

But evaporation, freezing, and rocks can’t quite account for all the water that must have covered Mars in the distant past. Calculations suggest the “missing” water is enough to cover the planet in an ...

A Chinese Mars rover may have found evidence of an ancient ocean on the arid Red Planet. According to a new paper in the journal Scientific Reports, China's Zhurong rover has discovered traces of ...

There might be a hidden ocean's worth of liquid water below the surface of Mars, seismic evidence suggests.. According to a new paper published April 25 in the journal National Science Review ...

At aphelion, water has an abundance of less than one part per million in Mars’s skies, compared to more than 50 parts per million at perihelion.

This picture of Mars is a composite of several images captured by Europa Clipper’s thermal imager on March 1. Bright regions are relatively warm, with temperatures of about 32 degrees Fahrenheit ...

If the InSight location is representative and you extract all the water from the fractures in the mid-crust, we estimate that the water would fill a 1-2 km deep (0.6-1.2 miles) ocean on Mars ...

Previous studies estimated that there could be enough water deep underground on Mars to cover the surface in a global ocean between 0.62 to 1.24 miles (1 and 2 kilometers) deep.