Volcanoes that had erupted on Mars not only warmed the Red Planet, but eventually produced liquid water on its surface as well. Scientists believe that volcanoes on Mars once might have been active and would have supposedly warmed the planet enough for the liquid water to exist on the Martian surface for a short period of time.
Mars currently has lake beds, dry river channels, and lake basins that give evidence that liquid water must have flown across the surface of the Red Planet. The water flow patterns on Mars suggest water flow on the planet occurred about 3.7 billion years ago, which is also believed to be the same ti...
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