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1 – Mars Was Once Alive? Today, Mars is cold. Dry. And covered in dust storms. But billions of years ago… Mars had rivers. Lakes. Possibly even oceans. Satellite images show dried river channels stretching for hundreds of kilometers. Minerals found on the surface prove that liquid water once existed for long periods of time. And where there is water… There is the possibility of life. Mars wasn’t always the dead planet we see today. It may have once been blue.