By: Ardis E. Parshall - July 11, 2012 Life on Mars. According to a report, the astronomers at Flagstaff, Ariz., now believe, after noting the change in colors of certain sections coincident with changes in the Martian year, that brownish sections of the planet which were before supposed to be seas were simply stretches of winter-denuded soil, since at other epochs these same sections show a blue-green tint, indicating fresh vegetati...
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