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.

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

Researchers are looking underfoot to uncover the mysterious past of Mars: Martian regoliths in the soil. Their water storage capabilities may help us understand the change in water on Mars over time.

A recent study has revealed that the red color of Mars is due to ferrihydrite, an iron oxide mineral. This finding suggests that Mars once had liquid ...

The fate of Mars’ water—whether it was buried as ... findings include a better understanding of the Red Planet’s water cycle, its potential conditions for life, and the availability of ...