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 headlines said we might have found alien life — but the reality is far more complicated. Scientists detected a possible biosignature on K2-18b, a distant exoplanet 124 light-years away, but the ...

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 ...

NASA’s Perseverance rover has discovered a “buried treasure” of Martian history. For years, the Red Planet has been a center of attention among the scientific community due to ...

Ancient life on Mars? Maybe, could be, might be. But this is going to require a much closer look. That’s the boiled-down message from NASA, which revealed Thursday that the Perseverance rover had ...

A detection of phosphine in the atmosphere of a brown dwarf 54 light-years from Earth deepens the mystery of phosphorus chemistry throughout the Milky Way. An ancient object more than 10 billion years ...

I listened to something similar with Adam Frank on a podcast. He was suggesting it wouldn't be one moment but we'd accumulate lots of data for lots of exoplanets and draw statistical conclusions like: ...

(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 ...

(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 ...