posted on Feb, 11 2004 @ 04:36 PM
Read this, Kano, it describes what NASA thinks about conditions on Mars and what kind of life forms to expect, where to find them and how to tell they
Plus the action plan for the current rover missions. All from 1995.
It even addresses your thoughts about the radiation and how life forms could have evolved in that enviroment.
They know, they know what there is (to an extent) and they know exactly where to find it.
The current missions are doing the step by step evaluation exactly like they planned since 1995.
Why they do not tell the public, well I guess thats why there will always be the unknown.