The Mars Rover Curiosity drilled in the John Klein area of Mars, (about 500 meters East of where it landed) and the sedimentary rock samples were passed to the on-board analyzers. The objective was to determine if the minerals necessary to maintain life were in this sample. Carbon, oxygen and sulfur in various forms were found. The NASA team has concluded that the John Klein area was once a fresh water environment that would have been favorable to organic life. Other Rovers samplings have found areas that once contained water but the conditions were not considered suitable to support organic life. On March 15 2013, the NASA team provided an informative video “Curiosity Rover Hits Paydirt”. It can be seen by clicking on the link below:
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Climate Change Sanity 