NASA’s Mars rover Perseverance has uncovered rocks in a dry river channel that may hold potential signs of ancient ...

A biosignature is any characteristic, element, molecule, substance or feature that serves as evidence for past or present life. It must be something that cannot be produced without life. Some examples ...

Minerals in the rock might have been produced by microbes in chemical reactions, but researchers say they’ll need to examine the sample more closely to know for sure ...

Texas A&M University geologist Mike Tice was on the international team of scientists that analyzed data from NASA's ...

NASA scientists discover strong new evidence that Mars may have once supported life, much as Earth does today.

NASA is increasingly sure its Mars rover Perseverance found a rock with biosignatures of ancient microbial life. However, the sample would need to be tested in labs on Earth to confirm the findings ...

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

Was there ever life on Mars? Planetary scientists think there could have been but there hasn’t been any direct evidence.

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

NASA’s Perseverance Mars rover collected a rock sample that NASA leaders say offers the best signs yet that ancient Mars ...

Taking a new look at a very old mudstone on Mars, scientists believe they have found a potential biosignature, indicating ...