They’re not completely sure. They never are. But this time, they’re pretty sure. Or, at the very least, sure enough to alert the media. Scientists monitoring the Perseverance Mars rover mission have ...

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 ...

The finding suggests phosphine—a potential biosignature—shouldn’t be viewed as evidence of alien life until natural, non-biological sources are ruled out. Reading time 5 minutes For scientists, the ...

NASA's Perseverance rover may have uncovered hints of ancient Martian life, but China's Tianwen 3 mission could be the first to deliver samples back to Earth. When you purchase through links on our ...

Perseverance took a selfie after filling a sample tube with a rock core from the arrowhead-shaped rock nicknamed Cheyava Falls. The small, dark hole in the rock is where the core sample was drilled.

As the Perseverance rover traversed an ancient river valley in Mars' Jezero Crater back in July 2024, it drilled into the surface and extracted a sample from a unique, striped rock called Cheyava ...

(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 ...