The images returned from NASAs Mars missions have been absolutely breathtaking.  There appears to be no life left on this planets dry tortured landscape.  However, Mars once flourished with vast rivers, oceans, vegetation and without a doubt, life.  This vision of a healthy planet untouched by humans has inspired the following creations to help others imagine what Mars once looked like, or what we could make of it.
NASA Originals
Alternative Artistic Transformations
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