When liquid water still existed on Mars, it carried dissolved minerals into rock cracks, NASA said. Once the liquid dried, it left the hardened minerals behind. The "unique shapes" left today were ...

NASA’s Curiosity rover has been getting all the attention these last few days as it celebrates its 13th year on Mars, but its ...

NASA's Perseverance rover on Mars has discovered unusual "float" rocks on the rim of Jezero Crater while searching for signs of ancient microbial life. Scientists are investigating their origin.