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"We've learned something very important: There are some parts of the Martian rock record that aren't so good at preserving evidence of the planet's past and possible life," Ashwin Vasavada, the National Aeronautics and Space Administration's Project Scientist of Curiosity Rover. 

For the past few years, space experts believed that the Red Planet was full of lakes billions of years ago. They added that these bodies of water served as one of the main habitats of various microbial organisms. 

However, NASA's researchers and other scientists from different space agencies explained that these lakes are no longer existing because of Mars' extreme climate, which changed and dried out the bodies of water.

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