No life on Mars

As much as we really want to find something, I don't think we will find life on Mars.  Look at the Earth as an example, when there is life on a planet it's everywhere.  The soil on the ground is made up of billions of years of organic material as thick as mountains.  Life has spread everywhere and can be seen from space looking down.  If there was life on Mars, after billions of years there should be some obvious sines.  But there are no sines so we try to dig looking for clues.

I suggest we recognize there is no life there and start planning to put life there.  It's not enough to just put people there.  We need to put an ecosystem up there so life can sustain itself.  We should start looking for suitable species and start planning.