NASA has revealed which countries could be hit if a "city killer" asteroid strikes Earth with a map of the risk corridor ... and would blow a city-sized crater into the Earth's crust.
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Scientists discover massive underwater crater that is 3x larger than the Grand CanyonAbout 35 million years ago, an asteroid struck the ocean off the East Coast of North America, leaving behind a massive impact crater now buried ... settled on the ocean floor, preserving a record ...
It’s a massive impact crater, buried 300 meters beneath the Atlantic ocean floor. According to Heriot-Watt University researchers, the images confirm that an asteroid struck Earth 66 million ...
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