Two giant asteroid impacts could have raised waves of more than 100 meters high there are 3.4 billion years.
at least two extremely violent tsunamis swept across the surface of Mars, there are about 3.4 billion years, according to a publication dated Thursday, May 19, 2016, in the journal Scientific Reports .
Le Parisien who gets the publication indicates that these two disasters exceeded in intensity that may even cause the most powerful earthquakes, and were caused by the fall of ‘giant asteroids leaving craters 30 km wide at the bottom of the Martian ocean dried up today, producing waves of 120 meters high, and flooding the coast up to 600 km from shore.
According Nicolas Mangold, CNRS researcher specializing Mars Planetary Geodynamics Laboratory and the University of Nantes, “is a bold hypothesis, which has important implications on what the Martian history is known, including the presence of an ocean at this time. “
the recent missions of the European Space Agency (ESA) and NASA have confirmed that the Martian climate has in the past been hotter and that large amounts of water flowed a time to the surface of the planet. But the idea that Mars could maintain for long periods of a great ocean, before the planet loses its atmosphere and cools, the subject of much debate among planetary scientists.
Several arguments were made by space observations to say that in an ancient past, around 3.8 billion years, much of the current northern hemisphere of Mars was covered by an ocean.
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