NASA has quietly hit pause on what it billed as its first dedicated hunt for alien biosignatures, reacting to fresh data that ...

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 ...

The United States is stepping back from the most direct test yet of possible alien biology on Mars just as new telescopes and ...

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 ...

(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 ...

This figure shows ozone detection in Venus' atmosphere between 2006 and 2014 by the ESA's Venus Express. Credit: Evdokimova et al. 2011, JGR Planets Just because we can find ozone in the atmosphere of ...

(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 ...

"This is not a slam dunk by any means — there's multiple lifetimes of questions to address." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The ...