"The results reported here can be crucial when down-selecting which samples, if not all, are returned to Earth." ...

One of the studies, led by Dr. Aleksandra Sokołowska of Brown University and Imperial College London, has identified 258 ...

A lookout point in the foothills of Mount Sharp, a 3-mile-high mountain, allowed the rover to see all the way across Gale Crater 's floor. Near the center of the image is Peace Vallis, an ancient ...

Jezero Crater’s rocks reveal three stages of water activity, shifting from hostile acidic fluids to more life-friendly ...

A planetary scientist walks through the sensors and systems that went into the recent detection of potential biosignatures.

Planetary geologists reply that these impressions usually result from pareidolia, the tendency for the brain to see familiar shapes in random patterns, a tendency Carl Sagan long ago called an ...

Earlier evidence pointing to ancient microbial life on the red planet hasn’t held up.

Scientists believe intriguing leopard spots on a rock sampled by the Perseverance rover on Mars may have potentially been ...

NASA’s Perseverance rover has delivered its most compelling clue yet in the search for life on Mars. A rock sample called ...

The barren red deserts of Mars might not be as lifeless as they seem. A growing number of researchers are pointing to strange ...

Just over a year ago, Nasa made a remarkable announcement. The Perseverance rover had found potential signs of ancient life ...

Seismic activity on the Red Planet – unsurprisingly called marsquakes instead of earthquakes – has allowed scientists to draw some conclusions about the rocky material that makes up the planet's ...