Scientists are confident Mars was once abundant with water, as seen in massive flood-carved channels, ancient river valleys, ...

Perhaps the most controversial of the possible signs of water on Mars are recurring slope lineae, which are dark streaks that ...

In particular, there are large valley networks in the Noachian landscape that were almost certainly carved by running water.

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.

Seismic readings of the interior of Mars strongly suggest large quantities of water buried 6 to 12 miles underground. Persuasive new evidence supporting the possibility of liquid water deep ...

But today Mars is cold and dry, with most water now located below the surface. Understanding how much water is stored offers critical information for energy exploration, as well as life ...

Get Instant Summarized Text (Gist) Mars had intermittent surface water over 3 billion years ago, but its current state remains debated. Recent analysis challenges a study suggesting significant ...

It seems that Mars once had beaches that would give the Californian coast a run for its money ... that Mars once hosted large bodies of water and a potentially habitable environment.

Mars may have once been a paradise with Earth ... formations that strongly indicate the presence of an ancient body of water that could have been an idyllic getaway for sun-loving Martians.

The recent study, however, challenged this idea by conducting new analyses of various spacecraft observations as well as running ... when water was still present on the surface, Mars rusted ...