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) (opens in a new tab) 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’ …