The potential “biosignature” isn’t direct evidence of life itself, but rather a leftover sign that textural features on the ...

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

Ancient organisms may have left microscopic "biosignatures" on Mars. That's according to NASA scientists, who say a rock ...

A rock collected by NASA’s Perseverance rover may hold the strongest evidence of life beyond Earth ever found, officials said ...

The National Aeronautics and Space Administration announced Wednesday that it may have found signs of ancient life on Mars.

Scientific understanding can evolve quickly, and that makes clear, careful messaging more essential than ever. Below, we ...