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

(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 ...

Add Yahoo as a preferred source to see more of our stories on Google. A composite view of Mars taken by the Viking I and II probes. NASA/USGS In September, NASA announced the discovery of a possible ...

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 ...

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 ...

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 ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...

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 ...