The intriguing chemistry of a rock collected by the Perseverance rover could trace to microbial activity — or not.

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

The redness of Mars has made the planet one of the most recognizable in the solar system with its hue serving as a topic of ...

Organisms known as extremophiles have been found inhabiting a range of extreme conditions on Earth, including inside our ...

Scientists may have uncovered a promising new method to detect ancient life on Mars. A recent study suggests that microbial ...

Mars rovers, landers, and orbiters are charged with understanding every aspect of the Red Planet, with all of their data shedding some degree of light on the possibility of life on Mars ...

We often forget how wonderful it is that life exists, and what a special and unique phenomenon it is. As far as we know, ours ...

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 ...

Step aside, Santa Monica. It seems that Mars once had beaches that would give the Californian coast a run for its money.

It [was] obvious these people were dying for some reason, but they were humans. They were just twice our size.' ...

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

Ferrihydrite, a water-rich iron mineral, plays an important role in giving the red planet its signature hue, according to the ...