Martian Rock Tells Big Story
Curiosity Rover Find Source: NASA Shows Presence of Water, Raises Questions of Life on Mars NASA's Curiosity rover has been exploring the planet Mars for the past seven years. It just found a rock that contains some of the secrets to what Mars was like when it was a lot more wet. The discovery is so important that the rock has been nicknamed "Strathdon". Strathdon The rock was found in the Gale Crater or the "clay bearing unit". The rock is composed of layers of sediment that are unique and wavy. NASA scientists say this shows evidence of flowing water and blowing wind. They add the history of water on Mars is much more complicated than they had previously thought. They now do not believe that Mars went from wet to dry overnight. Signs of Life on Mars The question still remains: with the presence of water on a warmer Mars with a thicker atmosphere, could that have sustained more than microbial life? NASA is searching f...