The planet Mars is home to thick layers of clay that can span hundreds of feet. Since they need water to form, these outcrops have long been of interest to scientists looking for signs of past life on ...

Scientists have found that ancient Martian lakes could have survived for decades despite freezing air temperatures. Using a ...

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"You need so much water that we think these could be evidence of an ancient warmer and wetter climate where there was rain falling for millions of years." ...

A Martian mystery that sparked years of debate — an alleged lake buried beneath miles of ice — now looks far less watery than scientists hoped. A new radar study from NASA’s Mars Reconnaissance ...

New research suggests that the thick, mineral-rich layers of clay found on Mars could hold the key to understanding whether the Red Planet ever harbored life. These layers, thought to have formed ...

Bright white rocks found by NASA’s Perseverance rover hint at ancient Martian rain lasting millions of years, raising new questions about how wet Mars once was and what those conditions might mean.

Small lakes on ancient Mars may have remained liquid for decades, even with average air temperatures well below freezing. Subscribe to our newsletter for the latest sci-tech news updates. Using a ...

Utah’s Great Salt Lake is a place of extremes, and its ecosystem is evidence that life can thrive under some of Earth’s most hostile conditions. Scientists say it may hold clues for life on other ...

A clay-rich mesa in the Hellas basin of Mars. The blue color near the rim is aluminum bearing clays. The red-orange color below that is iron and magnesium bearing clays. The image captures an area ...