The unknown about Mars is how chemically active the soil is. Remember, the Viking results for Mars showed a chemical reaction to water. If the soil has a high percentage of superoxides, then it will be likely unihabitable.
The unknown about Mars is how chemically active the soil is. Remember, the Viking results for Mars showed a chemical reaction to water. If the soil has a high percentage of superoxides, then it will be likely unihabitable.
