posted on Dec, 7 2012 @ 04:20 PM
The little that i know about planets,stars,etc... at one time the sun was bigger and at a higher temp than it is today.
so at one time mars probably had the same environment as earth, and with water available, it would only seem
to make sense that there would be life similar to earth.
One thing for sure is that the rover was not contaminated on earth, the whole assembly of the rover was done
in a clean room environment.
edit on 7-12-2012 by zigoapex because: (no reason given)