NASA has quietly hit pause on what it billed as its first dedicated hunt for alien biosignatures, reacting to fresh data that raised more questions than answers about how to tell life’s fingerprints ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) When scientists started looking into the data, they found two types of iron-rich ...

Has NASA's Perseverance rover at long last found evidence that life did indeed once exist on Mars? Well, after more than four years of scouring the Red Planet's rocky surface, the intrepid rover has ...

NASA's Perseverance rover has found potential evidence of ancient microbial life on Mars. Scientists must bring the rock to Earth for further study, but three key features make it promising. The ...

NASA has temporarily stopped its most ambitious search yet for signs of alien life, after two years of picking apart data from the James Webb Space Telescope (JWST).

As the New York Times reports, NASA researchers aren’t quite ready to declare that they’ve found definitive biosignatures — the scientific term for “signs of life” — in the piece of ancient rock the ...

On Sept. 10, NASA announced that the Perseverance Mars may have come close to discovering life on the red planet. A sample collected by NASA’s Perseverance Mars rover from an ancient dry riverbed in ...

Add Yahoo as a preferred source to see more of our stories on Google. A biosignature is any characteristic, element, molecule, substance or feature that serves as evidence for past or present life. It ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Amy J. Williams, University of Florida (THE CONVERSATION) As the Perseverance rover ...