Monster Mars Tsunami Left Evidence of a Vast Ocean

Mars Lomonosov Crater


“Imagine this enormous red wave coming towards you, up to 120 meters high,” said Alexis Rodriguez, a Mars researcher at the Planetary Science Institute of a mega-tsunami on Mars 3.4 billion years ago with skyscraper-high waves created when giant meteoroids slammed into a frigid ocean covering Mars’s northern hemisphere leaving a 75-mile-wide impact scar. “It would have been pretty spectacular.”