A potential new mineral on Mars forms when iron sulfates are heated above 100°C. Data from Valles Marineris regions suggest ...

Thin lids of ice could have sheltered lakes on ancient Mars and kept surface water liquid even as the Red Planet's climate became freezing, according to new research that could solve one of the ...

Why it matters: While not evidence of life, these discoveries show that ancient Mars had complex organic chemistry, ...

Geological features like these provide evidence that Mars once had a denser atmosphere and significant surface water — ...

NASA's Curiosity rover discovered strange mineral nodules on massive spiderweb formations on Mars.

Learn about geologic formation on Mars that resemble spiderwebs, serving as records of ancient groundwater flow on the planet.

New research has mapped 16 extensive, interlaced river systems on Mars, dating back approximately 3.7 billion years to the Early Hesperian Period. These large river systems, despite covering only ...

A 6.5-foot Mars sand ridge called Hazyview reveals how strong, steady winds once shaped the planet’s surface and soil ...

Scientist analyzed molecules found on an ancient rock on the Red Planet Photo12/Universal Images Group via Getty A new study may bring scientists one step closer to answering the question of whether ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. A simulated view of a lake ...