confirmation! water once flowed on Mars!!!
Scratch water off NASA’s Mars rover Curiosity’s list of things to find in a two-year quest to learn if the planet most like Earth in the solar system could have supported microbial life.
“We have now discovered evidence for water,” said lead scientist John Grotzinger. “This makes a great starting point for us to do more sophisticated studies.”
Though water is a key ingredient for life, it’s not the only one.