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

Investigating megabreccia, Perseverance seeks to unravel Mars's deep history, focusing on ancient rocks that may reveal clues ...

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

A new study co-authored by Texas A&M University geologist Dr. Michael Tice has revealed potential chemical signatures of ...

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

Analysis by researchers at the University of Bern suggests that water and other volatile compounds arrived on Earth from ...

Until recently, we could only study geology by looking at rocks on Earth and the Moon —well, and the rare meteor or two that ...

This week, NASA announced findings of potential biosignatures on Mars. Does that mean there's proof that there was once life ...

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

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 ...

A new study revealed potential chemical signatures from organic material on the surface of Mars, revealing the early organism ...

Mars’ Jezero Crater holds signs of ancient water and strange mineral reactions, some linked with organic compounds. With ...