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Rivers on Mars Flowed for More Than a Billion Years

The ancient climate Mars is to scientists. Even all we’ve learned about Mars, it’s still difficult to explain how lakes and rivers existed.

from https://www.universetoday.com/11879/rivers-on-mars-flowed-for-more-than-a-billion-years/
https://www.universetoday.com/wp-/uploads/2015/04/NASA_martianocean.jpg

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