Mars rover has been evaluated and damage is explained as probably due to microbial activity. Various anomalies have been observed which strongly suggest Mars has had at least one builder race.
Mars rover has been evaluated and damage is explained as probably due to microbial activity. Various anomalies have been observed which strongly suggest Mars has had at least one builder race.
I wrote that it's sterile, because it's commonly accepted.
http://www.iflscience.com/space/mars-seems-more-and-more-habitable-the-closer-we-look/