If Mars ever hosted microorganisms in its bygone oceans, their fossils might still be preserved in minerals—and now, we have ...

These rocks turned out to contain a mineral called kaolinite, which on Earth forms in warm, rainy environments or near hot ...

Within the next decade, space agencies plan to bring samples of rock from Mars to Earth for study. Of concern is the ...

Sometimes scientists must dig and work and sweat to make scientific discoveries. And sometimes a robot rolls over a rock that ...

Scientists may finally have a way to detect ancient life on Mars by studying microbial fossils preserved in sulfate minerals.

Scientists have discovered kaolinite mineral on Mars, providing new evidence that the planet was once warm and wet.

The most significant change since those 1970's experiments were conducted was the discovery of high levels of perchlorate on Mars. Perchlorate, plus abiotic oxidants, explains the Viking results and ...

A new method to detect life in ancient rocks could help analyze Mars samples and determine if life once existed on the red ...

A rock on Mars spilled a surprising yellow treasure after Curiosity accidentally cracked through its unremarkable exterior. When the rover rolled its 899-kilogram (1,982-pound) body over the rock in ...

Kaolinite is a soft, earthy, usually white, mineral produced by the chemical weathering of aluminium silicate minerals like ...

found that the region would have been icy and salty — quite hostile for life to emerge, at least above ground. China's ...

Is there life on Mars? Fast forward to today, a new paper tackles and reconsiders the results of the Viking Biology experiments. The most significant change since those 1970's experiments were ...