Asteroid strike triggered mega-tsunami on Mars similar to the devastating blow that wiped out the dinosaurs on Earth, scientists believe
They carried out simulations of asteroid and comet collisions to establish what kind of impact could have created Pohl and whether it could have caused a mega-tsunami.
The amount of energy released by the most powerful megaton ever tested was approximately 57 megatons of TNT energy. Analysis of the giant wave unleashed by the 3km asteroid impact suggested the tsunami could have measured 250 metres on land.
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