Which leads to this question: If all the “building blocks” are there, why didn’t life begin on Mars? Could it be that life doesn’t just spontaneously happen?
†*************************************************
Perhaps it did, untold billions of years ago and then ended. What we are findings is what remains after a world dies.
See Cementjungle’s link
http://freerepublic.com/focus/news/3661313/posts?page=23#23