Jezero Crater’s rocks reveal three stages of water activity, shifting from hostile acidic fluids to more life-friendly ...

A planetary scientist walks through the sensors and systems that went into the recent detection of potential biosignatures.

Planetary geologists reply that these impressions usually result from pareidolia, the tendency for the brain to see familiar shapes in random patterns, a tendency Carl Sagan long ago called an ...

Images and measurements from NASA’s Perseverance rover indicate that recently identified rocks in Jezero Crater are composed of mudstones containing organic carbon. According to a study published in ...

Scientists believe intriguing leopard spots on a rock sampled by the Perseverance rover on Mars may have potentially been ...

NASA’s Perseverance rover has delivered its most compelling clue yet in the search for life on Mars. A rock sample called ...

Martian mudstones contain features that NASA says are the "clearest sign of life" yet on Mars, according to new findings from ...

A biosignature is any characteristic, element, molecule, substance or feature that serves as evidence for past or present ...

Minerals in the rock might have been produced by microbes in chemical reactions, but researchers say they’ll need to examine ...

Prize: NASA could offer a prize—say $3 billion to the first company and $1 billion to a second company—for delivering ...

Research led by NASA suggests a habitable past on Mars based on the discovery of minerals in Martian rocks associated with ...

The discovery by the six-wheeled rover in Jezero Crater represents one of the best pieces of evidence to date about the ...