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 ...

A Martian rock sample collected by NASA’s Perseverance rover has revealed chemical signatures that may be linked to ancient microbial life, according to a peer-reviewed study published this week in ...

The Perseverance rover from NASA has discovered potential ancient Martian microbial life chemical signatures in the Bright Angel formation within Jezero Crater on Mars. The findings, involving Dr.

Just over a year ago, NASA made a remarkable announcement. The Perseverance rover had found potential signs of ancient life ...