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

Mars, once a planet abundant with water, now lies as a barren, arid expanse. Its surface features reveal a history where ...

Instead, Mars' red color is better matched by ferrihydrite — an iron oxide that contains water — and so the hue must have ...

Liquid water has been observed on the planet Mars, the US space agency NASA said Monday. "Mars is not the dry, arid planet we thought of in the past," Jim Green, NASA's planetary science director ...

but signs of entire reservoirs of liquid water still lurking beneath the planet's arid surface. But we're still far from having a complete picture of what the Martian climate looked like billions ...

China's Zhurong Mars rover, which has been exploring the planet's arid surface since May 2021, has made a fascinating discovery: ancient, "vacation-style" beaches. The findings, detailed in a new ...