NASA finds coral-shaped rock on Mars

NASA has captured an image of a coral-like rock on Mars estimated to be several billions of years old. The space agency's Curiosity Rover sent back images of a small, wind-eroded rock that resembles a piece of coral reef on July 24 -- the 4,609th Martian day of the rover's mission. The rock is about an 1 inch wide. The Curiosity Rover has captured many images of this type of rock, according to NASA. 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 shaped by sandblasting over billions of years, NASA said. A strangely shaped 2-inch rock nicknamed "Paposo" was also discovered on July 24. Another flower-shaped rock was found in 2022. The flower roc