An artist

A colossal ‘planet-killer’ asteroid triggered a mega-tsunami on Mars, and now we know where it landed

An artist’s rendition of a killer asteroid exploding on impact with the Red Planet. (Image credit: Shutterstock)

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A newly discovered impact crater on Mars was likely left behind by a massive asteroid that slammed into the Red Planet around 3.4 billion years ago and may have triggered an 800ft ‘mega-tsunami’ high. The colossal explosion was similar to the asteroid impact on Earth that wiped out non-avian dinosaurs, according to a new study.

About 3.5 to 3 billion years ago, Mars was covered in vast, shallow oceans. Meanwhile, one of those oceans, which once covered Mars’ northern lowlands (Vastitas Borealis), experienced several mega-tsunamis when asteroids slammed into the ancient body of water, according to Nasa (opens in a new tab).

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