There are a couple potential explanations for distinctive markings found on a Martian rock, but new evidence suggests they ...

An arrowhead-shaped rock on Mars sporting features that may hint at ancient microbial activity on the Red Planet has left ...

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

Scientists have found kaolinite, a mineral that forms in warm, wet conditions on Earth, raising serious questions about Mars’ ...

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

Researchers have found new evidence for a massive subsurface ocean on Mars, again raising the possibility of microbial life.

Mars might hold enough subsurface water to cover its surface in a global ocean between 0.62 to 1.24 miles (1 to 2 kilometers) ...

Their discovery showed that even tucked away in our innards – in the walls of our stomachs, subjected to vinegar-like pH ...

Since its arrival on the Martian surface five years ago, NASA’s Perseverance rover has been busy scouring the Red Planet for ...

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

Studies on bacteria like Helicobacter pylori suggest that if life exists on Mars, it might resemble resilient microbes found in human stomachs. Scientists cont... Reports from NASA’s Curiosity ...

Within the next decade, space agencies plan to bring samples of rock from Mars to Earth for study. Of concern is the possibility these samples contain life, which could have unforeseen consequences.