Megatsunami swept across Mars after a massive asteroid hit the Red Planet

Megatsunami swept across Mars after a massive asteroid hit the Red Planet

A Martian megatsunami — a giant deadly wave that may be more than 80 stories high — may have swept across the Red Planet after a cosmic impact similar to the one that likely ended the Earth’s age of dinosaurs, a new study finds.

Although the surface of Mars is now cold and dry, much evidence suggests that the Red Planet was covered with an ocean of water billions of years ago. Previous research found signs that two meteor impacts may have resulted a few megatsunamis (opens in new tab) about 3.4 billion years ago. The older tsunami inundated about 309,000 square miles (800,000 square kilometers), while the more recent one drowned an area of ​​about 386,000 square miles (1 million square kilometers).





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