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Giant Tsunamis Washed Over Ancient Mars

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Ancient Mars tsunami

From the shoreline of an ancient Martian ocean, tsunamis may have washed ashore two separate times, leaving behind piles of rocks and debris.

Credit: Alexis Rodriguez

Some 3.4 billion years ago, giant meteoroids slammed into a frigid ocean covering Mars's northern hemisphere. The impacts kicked up enormous waves that raced across the water and swamped the shoreline, research suggests.

From Nature
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