satt_focusable wrote:The layered Mars rock "may" be sedimentary related with past water.
Mmmmmm, sedimentary rocks
... you know what you sometimes find in sedimentary rocks (at least on Earth) ... FOSSILS! Now wouldn't *that* be a shocker
Not that I think it's likely or anything, but who knows. We've never poked around on Mars before, so it's possible that ancient Mars had a lot more than microbes, it *could* have had a Cambrian explosion for all we know. It could have been on exactly the same track as Earth, up until its geosphere changed and wiped everything out (and we would have no way of knowing this without looking far more closely than we ever have before).
Sorry... just indulging in a bit of dreaming