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

Scientists may finally have a way to detect ancient life on Mars by studying microbial fossils preserved in sulfate minerals. Gypsum deposits on Mars may be hiding evidence of past microbial life — ...

The expectation was that, if life was present on Mars, it would show some kind of ... Martian microbes could potentially survive by drawing moisture from the atmosphere. This ability could be ...